publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2019-03-12 | Light-induced breathing in photochromic yttrium oxy-hydrides | When exposed to air, metallic yttrium dihydride YH2films turn into insulating
and transparent yttrium oxy-hydride (YHO). The incorporation of oxygen causes
the lattice expansion of YH2 and the emergence of photochromic properties.
However, the oxidation of YH2 is not completely irreversible: under
illumination some oxy... | 1903.05021v1 |
2019-08-28 | Thermal surface neutralization of Fr ions with metal foils for magneto-optical trapping of radioisotopes | We investigate neutralization processes (especially thermal surface
neutralization), which are required for the magneto-optical trapping of
radioactive atoms. A variety of neutralization methods are first summarized:
neutral beam injection for fusion reactors, neutral atom implantation in
semiconductor processing, and ... | 1908.10698v1 |
2019-11-15 | Yttrium Tantalum Oxynitride Multiphases as Photoanodes for Water Oxidation | Perovskite yttrium tantalum oxynitride is theoretically proposed as a
promising semiconductor for solar water splitting because of the predicted
bandgap and energy positions of band edges. In experiment, however, we show
here that depending on processing parameters, yttrium tantalum oxynitrides
exist in multiphases, in... | 1911.06550v1 |
2019-12-23 | Characterization of near-room-temperature superconductivity in yttrium superhydrides | Recently, Troyan et al (2019 arXiv:1908.01534) and Kong et al (2019
arXiv:1909.10482) extended near-room-temperature superconductors family by new
yttrium superhydride polymorphs, YHn (n = 4,6,7,9), which exhibit
superconducting transition temperatures in the range of Tc = 210-243 K at
pressure of P = 160-255 GPa. In t... | 1912.10941v1 |
2021-05-30 | Systematic studies of rubidium-exposed surfaces by X-ray photoelectron spectroscopy and light-induced atom desorption | We systematically investigated various types of surfaces on which rubidium
(Rb) atoms were deposited by X-ray photoelectron spectroscopy (XPS) and
measured the light-induced atom desorption (LIAD) from those surfaces. The main
surfaces of interest included synthetic quartz, yttrium metal, and paraffin.
The Rb atoms dep... | 2105.14451v1 |
2021-11-18 | Light outputs of yttrium doped BaF$_2$ crystals irradiated with neutrons | The fast luminescence component of barium fluoride (BaF$_2$) crystals with a
subnanosecond decay time can find wide application in particle physics and
nuclear physics. However, the slow luminescence component with the 630~ns decay
time could cause pile-up signals at a high rate environment. Doping of BaF$_2$
crystals ... | 2111.09672v1 |
2023-01-28 | Structure and Dynamics of a Lattice of Tetragonal Germanates R2Ge2O7 (R = Tb-Lu, Y): Ab Initio Calculation | The crystal structure, phonon spectrum, and elastic constants of a series of
rare-earth germanates (including yttrium germanate R2Ge2O7 (R = Tb-Lu, Y)) with
a tetragonal structure have been ab initio calculated within the density
functional theory. The frequencies and types of fundamental vibrations and the
intensities... | 2301.12196v1 |
2008-01-26 | Magnetoelectric Control of Domain Walls in a Ferrite Garnet Film | The effect of magnetic domain boundaries displacement induced by electric
field is observed in epitaxial ferrite garnet films (on substrates with the
(210) crystallographic orientation). The effect is odd with respect to the
electric field (the direction of wall displacement changes with the polarity of
the voltage) an... | 0801.4073v1 |
2018-02-02 | Separated quotients of Picard schemes | We give some necessary and sufficient conditions for the existence of
N\'{e}ron models of jacobians of semistable morphisms of arbitrary relative
dimension over base schemes of arbitrary dimension. To do this, we introduce a
notion of alignment for semistable morphisms over any regular base scheme, and
show that the ja... | 1802.00618v2 |
2018-06-14 | Garnet Ring Measurements For The Fermilab Booster 2nd Harmonic Cavity | A perpendicularly biased tuneable 2nd harmonic cavity is being constructed
for use in the Fermilab Booster. The cavity's tuner uses National Magnetics
AL800 garnet as the tuning media. For quality control, the magnetic properties
of the material and the uniformity of the properties within the tuner must be
assessed. We... | 1806.05716v1 |
2020-10-29 | Miniature Annular Permanent Magnet Assembly with Fast Far Field Decay and Majority Collimated Central Field | We report on a 3/8" OD x 1/4" ID x 3/8" long NdFeB assembly of 1/16" thick
annulars boasting half the 1/100 far field transverse decay distance compared
to an ID Helholtz-spaced pair of similar annulars; and greater than 50% of ID
collimated better than 1/1000. The device is applied to a He-3,-4 laser
spectroscopy expe... | 2011.02558v2 |
2021-01-10 | Innovative Low Cost Laboratory Automation Environment and LabVIEW Reformation Application Case Study | In recognition of the catalytic role of instruments, we report on an
original, low-cost, robust, LabVIEW-based automation development environment
configuration and application to reformation of a legacy laser atomic
spectroscopy system. Open source, version and configuration control, full
back-up, and remote/distribute... | 2101.03637v1 |
2001-09-19 | The Feynman Propagator from a Single Path | We show that it is possible to construct the Feynman Propagator in one
dimension, without quantization, from a single continuous space-time path. | 0109092v2 |
1999-07-06 | Dipolar random field Ising model: an application to garnet films | The dipolar-random field Ising model (DRFIM) recently introduced displays a
behaviour that can be connected to the magnetization of bidimensional magnetic
media. Epitaxial magnetic garnet films seem to be the ideal test material for
such a model. In this work the results of the measurements performed on garnet
samples ... | 9907075v1 |
2000-10-05 | Classical Heisenberg antiferromagnet on a garnet lattice: a Monte Carlo simulation | We have studied a classical antiferromagnet on a garnet lattice by means of
Monte Carlo simulations in an attempt to examine the role of geometrical
frustration in Gadolinium Gallium Garnet, Gd3Ga5O12 (GGG). Low-temperature
specific heat, magnetisation, susceptibility, the autocorrelation function A(t)
and the neutron ... | 0010088v1 |
2006-07-03 | Interaction between superconducting vortices and Bloch wall in ferrite garnet film | Interaction between a Bloch wall in a ferrite-garnet film and a vortex in a
superconductor is analyzed in the London approximation. Equilibrium
distribution of vortices formed around the Bloch wall is calculated. The
results agree quantitatively with magneto-optical experiment where an in-plane
magnetized ferrite-garne... | 0607043v2 |
2017-12-05 | Deep Neural Networks for Accurate Predictions of Garnet Stability | Predicting the stability of crystals is one of the central problems in
materials science. Today, density functional theory (DFT) calculations are the
computational tool of choice to obtain energies of crystals with quantitative
accuracy. Despite algorithmic and computing advances, DFT calculations remain
comparatively ... | 1712.01908v1 |
2021-12-23 | Steam Degradation of Ytterbium Disilicate Environmental Barrier Coatings: Effect of Composition, Microstructure and Temperature | Recession of environmental barrier coatings (EBC) in environments containing
steam is a pressing concern that requires further research before their
implementation in gas turbine engines can be realized. In this work,
free-standing plasma sprayed Yb2Si2O7 coatings were exposed to flowing steam at
1350 {\deg}C and 1400 ... | 2201.04939v1 |
2022-07-18 | An Ab-initio study of the Y decorated 2D holey graphyne for hydrogen storage application | Expanding pollution and rapid consumption of natural reservoirs (gas, oil,
and coal) led humankind to explore alternative energy fuels like hydrogen fuel.
Solid-state hydrogen storage is most desirable because of its usefulness in the
onboard vehicle. In this work, we explored the yttrium decorated ultra porous,
two-di... | 2207.08546v1 |
2010-11-09 | First-principles modeling of the interactions of iron impurities with graphene and graphite | Results of first principles modelling of interactions graphene and graphite
with iron impurities predict the colossal difference between these two carbon
allotropes. Insertion of the iron atoms between the planes of graphite is much
more energetically favourable than adsorption of the iron adatom at graphite or
graphen... | 1011.1950v1 |
2020-03-27 | The Chemical Evolution of Galaxy Clusters: Dissecting the Iron Mass Budget of the Intracluster Medium | We study the chemical evolution of galaxy clusters by measuring the iron mass
in the ICM after dissecting the abundance profiles into different components.
We use Chandra archival observations of 186 morphologically regular clusters in
the redshift range [0.04, 1.07]. For each cluster we compute the iron abundance
and ... | 2003.12426v2 |
2006-09-15 | Fluorescence from metallic silver and iron nanoparticles prepared by exploding wire technique | The observation of intense visible fluorescence from silver and iron
nanoparticles in different solution phases and surface capping is reported
here. Metallic silver and iron nanoparticles were obtained by exploding pure
silver and iron wires in pure water. Bovine serum albumin protein adsorption on
the silver nanopart... | 0609369v1 |
2011-11-24 | IrOnIc: How to Consider Hundreds of Millions of Iron-Group Lines in NLTE Model-Atmosphere Calculations | Iron-group elements have a very high number of atomic levels and an
overwhelming number of spectral lines. No NLTE model-atmosphere code can cope
with these in a classical way. A statistical approach was developed over the
last decade to decrease the number of levels and lines to a manageable amount.
The Iron Opacity a... | 1111.5740v1 |
2014-04-30 | Superconducting Gaps via Raman Scattering in Iron Superconductors | We investigate non-resonant Raman response for iron-based superconductors
using the framework of an effective S4 model that was recently proposed to
capture the essential electronic and magnetic properties of Iron based
superconductors. We compute the momentum matrix elements and the resulting
Raman vertices exactly fo... | 1404.7745v1 |
2024-03-26 | Suzaku observation of an iron K-shell line in the spiral galaxy NGC 6946 | An emission line at ~6.7 keV is attributable to a He-like iron K-shell
transition, which indicates existence of a thin thermal plasma with a
temperature of several keV. Using Suzaku archival data, we searched for the
iron K-line from the spiral galaxy NGC 6946, and found the iron K-line at
6.68+/-0.07 keV at the 3.1 si... | 2403.17300v1 |
2013-08-27 | A Computational Model of Liver Iron Metabolism | Iron is essential for all known life due to its redox properties, however
these same properties can also lead to its toxicity in overload through the
production of reactive oxygen species. Robust systemic and cellular control are
required to maintain safe levels of iron and the liver seems to be where this
regulation i... | 1308.5826v1 |
2016-11-25 | Thermodynamics and Charging of Interstellar Iron Nanoparticles | Interstellar iron in the form of metallic iron nanoparticles may constitute a
component of the interstellar dust. We compute the stability of iron
nanoparticles to sublimation in the interstellar radiation field, finding that
iron clusters can persist down to a radius of $\simeq 4.5\,$\AA, and perhaps
smaller. We emplo... | 1611.08607v1 |
2021-05-12 | Iron-silica interaction during reduction of precipitated silica-promoted iron oxides using in situ XRD and TEM | The effect of silica-promotion on the reduction of iron oxides in hydrogen
was investigated using in situ X-ray diffraction and aberration-corrected
transmission electron microscopy to understand the mechanism of reduction and
the identity of the iron(II) silicate phase that has historically been
designated as the caus... | 2105.05620v1 |
2008-08-01 | Measurement of diffusion coefficients of francium and rubidium in yttrium based on laser spectroscopy | We report the first measurement of the diffusion coefficients of francium and
rubidium ions implanted in a yttrium foil. We developed a methodology, based on
laser spectroscopy, which can be applied to radioactive and stable species, and
allows us to directly take record of the diffusion time. Francium isotopes are
pro... | 0808.0152v1 |
2019-04-15 | Crystal field coefficients for yttrium analogues of rare-earth/transition-metal magnets using density-functional theory in the projector-augmented wave formalism | We present a method of calculating crystal field coefficients of
rare-earth/transition-metal (RE-TM) magnets within density-functional theory
(DFT). The principal idea of the method is to calculate the crystal field
potential of the yttrium analogue ("Y-analogue") of the RE-TM magnet, i.e. the
material where the lantha... | 1904.06896v1 |
2001-08-17 | Magnetic polarons in Ca_(1-x)Y_xMnO_3 | Experimental evidence show that in the magnetoresistive manganite Ca_(1-x)
Y_xMnO_3, ferromagnetic (FM) polarons arises in an antiferromagnetic (AF)
background, as a result of the doping with Yttrium. This hypothesis is
supported in this work by classical Monte Carlo (MC) calculations performed on
a model where FM Doub... | 0108284v1 |
2005-11-15 | A Simple Model for Simple Aging in Glassy Yttrium-Hydrides | A simple explanation for the logarithmic aging of the photoconductivity in
yttriumhydride is proposed. We show that the scaling (``simple'' aging) of the
relaxation response with the illumination time t_w is consistent with the
superposition of independently relaxing excitations with time offsets
distributed over a win... | 0511383v1 |
2008-05-28 | Nernst effect of epitaxial YBCO films doped with Ca and Zn | We report Nernst effect measurements for some crystalline films of Ca and
Zn-doped yttrium barium copper oxide grown by pulsed laser deposition. We argue
that our results and most of the published data for LSCO are consistent with
the theory of Gaussian superconducting fluctuations. | 0805.4293v1 |
2016-06-12 | The green light generation by self-frequency-doubled Yb:YCOB crystal | Taking advantages of the broad emission bands of a Yb3+ doped calcium yttrium
oxoborate (Yb:YCOB) crystal cut along the optimized direction out of principle
planes with the maximum effective nonlinear coefficient, the
self-frequency-doubled green light based on the self-frequency-doubling
behavior of Yb:YCOB was achiev... | 1606.03678v1 |
2020-12-08 | Superconductivity at 253 K in lanthanum-yttrium ternary hydrides | Polyhydrides offer intriguing perspectives as high-temperature
superconductors. Here we report the high-pressure synthesis of a series of
lanthanum-yttrium ternary hydrides: cubic hexahydride $(La,Y)H_{6}$ with a
critical temperature $T_{C}$ = 237 +/- 5 K and decahydrides $(La,Y)H_{10}$ with
a maximum $T_{C}$ ~${253 K}... | 2012.04787v1 |
2017-07-03 | Lattice-Geometry Effects in Garnet Solid Electrolytes: A Lattice-Gas Monte Carlo Simulation Study | Ionic transport in solid electrolytes can often be approximated as ions
performing a sequence of hops between distinct lattice sites. If these hops are
uncorrelated, quantitative relationships can be derived that connect
microscopic hopping rates to macroscopic transport coefficients. At non-dilute
concentrations the r... | 1707.00491v2 |
2018-01-09 | Absence of magnetic ordering and field induced phase diagram in the Gadolinium Aluminium garnet | The robustness of spin liquids with respect to small perturbations, and the
way magnetic frustration can be lifted by slight changes in the balance between
competing magnetic interactions remains a rich and open issue. We address this
question through the study of the Gadolinium Aluminium garnet
Gd$_3$Al$_5$O$_{12}$, a... | 1801.02836v1 |
2019-05-09 | Crystal fields and magnetic structure of the Ising antiferromagnet Er$_3$Ga$_5$O$_{12}$ | Rare earth garnets are an exciting playground for studying the exotic
magnetic properties of the frustrated hyperkagome lattice. Here we present a
comprehensive study of the single ion and collective magnetic properties of the
garnet Er$_3$Ga$_5$O$_{12}$. Using inelastic neutron scattering, we find a
crystal field grou... | 1905.03687v2 |
2023-04-27 | Modeling diffusion in ionic, crystalline solids with internal stress gradients | Intracrystalline diffusion is an invaluable tool for estimating timescales of
geological events. Diffusion is typically modeled using gradients in chemical
potential. However, chemical potential is derived for uniform pressure and
temperature conditions and therefore cannot be used to model diffusion when
there are gra... | 2304.14330v2 |
2018-08-21 | Spatial Distribution of Metals in the ICM: Evolution of the Iron Excess in Relaxed Galaxy Clusters | We investigate the spatial distribution of iron in the intra-cluster medium
in a selected sample of 41 relaxed clusters in the redshift range $0.05 < z <
1.03$ using {\sl Chandra} archival data. We compute the azimuthally-averaged,
deprojected $Z_{\rm Fe}$ profile of each cluster out to $\sim 0.4r_{500}$, and
identify ... | 1808.06742v1 |
2023-09-05 | Isotopic constraints on genetic relationships among group IIIF iron meteorites, Fitzwater Pass, and the Zinder pallasite | Complex interelement trends among magmatic IIIF iron meteorites are difficult
to explain by fractional crystallization and have raised uncertainty about
their genetic relationships. Nucleosynthetic Mo isotope anomalies provide a
powerful tool to assess if individual IIIF irons are related to each other.
However, while ... | 2309.02518v1 |
1998-03-21 | Interfaces of Modulated Phases | Numerically minimizing a continuous free-energy functional which yields
several modulated phases, we obtain the order-parameter profiles and
interfacial free energies of symmetric and non-symmetric tilt boundaries within
the lamellar phase, and of interfaces between coexisting lamellar, hexagonal,
and disordered phases... | 9803260v1 |
2002-06-03 | The Dirac Equation in Classical Statistical Mechanics | The Dirac equation, usually obtained by `quantizing' a classical stochastic
model is here obtained directly within classical statistical mechanics. The
special underlying space-time geometry of the random walk replaces the missing
analytic continuation, making the model `self-quantizing'. This provides a new
context fo... | 0206016v1 |
2002-06-14 | Entwined Pairs and Schroedinger 's Equation | We show that a point particle moving in space-time on entwined-pair paths
generates Schroedinger's equation in a static potential in the appropriate
continuum linit. This provides a new realist context for the Schroedinger
equation within the domain of classical stochastic processes. It also suggests
that self-quantizi... | 0206095v1 |
2017-07-22 | Gaussian and plane-wave mixed density fitting for periodic systems | We introduce a mixed density fitting scheme that uses both a Gaussian and a
plane-wave fitting basis to accurately evaluate electron repulsion integrals in
crystalline systems. We use this scheme to enable efficient all-electron
Gaussian based periodic density functional and Hartree-Fock calculations. | 1707.07114v1 |
2018-03-27 | An efficient stochastic algorithm for the perturbative density matrix renormalization group in large active spaces | We present an efficient stochastic algorithm for the recently introduced
perturbative density matrix renormalization group (p-DMRG) method for large
active spaces. The stochastic implementation bypasses the computational
bottleneck involved in solving the first order equation in the earlier
deterministic algorithm. We ... | 1803.09943v1 |
2018-03-27 | Density Matrix Embedding Theory and Strongly Correlated Lattice Systems | This thesis describes the development of the density matrix embedding theory
(DMET) and its applications to lattice strongly correlated electron problems,
including a review of DMET theory and algorithms (Ch 2), investigation of
finite size scaling (Ch 3), Applications to high-temperature superconductivity
(Ch 4-6), a ... | 1803.10259v1 |
2008-05-30 | A brief comment on the chemical formulae of the rare earth iron arsenide oxide superconductors | Just a brief comment on the chemical formulae of the rare earth iron arsenide
oxide superconductors | 0805.4668v1 |
2010-11-08 | Magnetoelastic Effects in Iron Telluride | Iron telluride doped lightly with selenium is known to undergo a first order
magneto-structural transition before turning superconducting at higher doping.
We study the effects of magneto-elastic couplings on this transition using
symmetry considerations. We find that the magnetic order parameters are coupled
to the un... | 1011.1932v2 |
2015-07-23 | Single solenoidal magnetic system for Iron-free detector | We consider a single solenoidal system for possible usage in Iron-free
detectors for future linear colliders | 1507.06694v1 |
2016-02-16 | Multi-Sensor Surface Analysis for Robotic Ironing | Robotic manipulation of deformable objects remains a challenging task. One
such task is to iron a piece of cloth autonomously. Given a roughly flattened
cloth, the goal is to have an ironing plan that can iteratively apply a regular
iron to remove all the major wrinkles by a robot. We present a novel solution
to analyz... | 1602.04918v1 |
2016-02-22 | Iron Oxide Surfaces | The surface science of iron oxides is comprehensively reviewed. For the full
abstract please see pdf. | 1602.06774v1 |
2016-03-16 | Magnetic Properties Controlled by Interstitial or Interlayer Cations in Iron Chalcogenides | By applying density functional theory calculations to iron chalcogenides, we
find that magnetic order in Fe$_{1+y}$Te and magnetic instability at
$(\pi,\pi)$ in K$_y$Fe$_2$Se$_2$ are controlled by interstitial and interlayer
cations, respectively. While in Fe$_{1+y}$Te, magnetic phase transitions occur
among collinear,... | 1603.04952v1 |
2017-06-12 | Basic electronic properties of iron selenide under variation of structural parameters | Since the discovery of high-temperature superconductivity in the thin-film
FeSe/SrTiO$_3$ system, iron selenide and its derivates have been intensively
scrutinized. Using ab initio density functional theory calculations we review
the electronic structures that could be realized in iron-selenide if the
structural parame... | 1706.03543v2 |
2022-04-08 | Nucleation and growth of iron pebbles explains the formation of iron-rich planets akin to Mercury | The pathway to forming the iron-rich planet Mercury remains mysterious.
Mercury's core makes up 70% of the planetary mass, which implies a significant
enrichment of iron relative to silicates, while its mantle is strongly depleted
in oxidized iron. The high core mass fraction is traditionally ascribed to
evaporative lo... | 2204.04241v1 |
2023-03-21 | Forming super-Mercuries: The role of stellar abundances | Super-Mercuries, rocky exoplanets with bulk iron mass fraction of more than
60 per cent, appear to be preferentially hosted by stars with higher iron mass
fraction than the Earth. It is unclear whether these iron-rich planets can form
in the disc, or if giant impacts are necessary. Here we investigate the
formation of ... | 2303.11948v1 |
2023-12-14 | Past and Present Dynamics of the Iron Biogeochemical Cycle | This chapter investigates the complexities surrounding the iron
biogeochemical cycle from the Archean to present, with a focus on assessing the
balance between iron sources and sinks during long periods of Earth's history
with relatively invariable redox conditions, when steady state can be safely
assumed. Currently, t... | 2312.09044v1 |
1997-09-18 | Magnetic excitations and structural change in the S=1/2 quasi-one-dimensional magnet Sr_{14-x}Y_{x}Cu_{24}O_{41} (0<x<1) | Neutron scattering measurements have been performed on the S=1/2
quasi-one-dimensional system Sr_{14-x}Y_{x}Cu_{24}O_{41}, which has both simple
chains and two-leg ladders of copper ions. We observed that when a small amount
of yttrium is substituted for strontium, which is expected to reduce the number
of holes, the d... | 9709203v1 |
1997-11-02 | The dimpling in the CuO_2 planes of YBa_2Cu_3O_x (x=6.806-6.984, T=20-300 K) measured by yttrium EXAFS | The dimpling of the CuO_2 planes (spacing between the O2,3 and Cu2 layers) in
YBa_2Cu_3O_x has been measured as a function of oxygen concentration and
temperature by yttrium x-ray extended-fine-structure spectroscopy (EXAFS). The
relative variations of the dimpling with doping (x=6.806-6.984) and temperature
(20-300 K)... | 9711004v1 |
2003-04-04 | The easy axis of the magnetic response of the conduction electrons of yttrium and rare earths | We describe a scheme for first-principles calculations of the static,
paramagnetic, spin susceptibility of metals with relativistic effects such as
spin-orbit coupling included. This gives the direction for an applied modulated
magnetic field to maximise its response. This easy axis depends on the
modulation's wave-vec... | 0304112v1 |
2003-10-20 | Excess Modes and Enhanced Scattering in Rare-Earth Doped Amorphous Silicon Thin Films | We report specific heat and thermal conductivity of gadolinium- and
yttrium-doped amorphous silicon thin films measured using silicon-nitride
membrane-based microcalorimeters. Addition of gadolinium or yttrium to the
amorphous silicon network reduces the thermal conductivity over a wide
temperature range while signific... | 0310463v2 |
2003-11-22 | The enhancement of superconducting transition temperature in yttrium sesquicarbide system, Y2C3, with the maximum Tc of Tc=18K | We discovered the enhancement of superconducting transition temperature, Tc,
in yttrium sesquicarbide system with the maximum Tc of Tc=18K and their
superconducting properties were discussed. The crystal structure of Y2C3 is the
body-centered cubic (Pu2C3-type) structure, and the lattice parameters are
varied with the ... | 0311517v1 |
2003-11-25 | Upper Critical Field of a Novel 18-K Superconductive Phase in Metastable Yttrium Sesquicarbide Prepared Using High Pressure Technique | The metastable phase of an yttrium sesquicarbide compound, which was vary
recently reported as a new superconductive phase with a Tc value of 18 K, was
prepared under high pressure from the nominal composition of Y2C3 and
Y2C2.9B0.1 in order to investigate this phase. We have succeeded in
reproduction, and in the trans... | 0311561v1 |
2004-11-26 | Interactions between Polymers and Nanoparticles : Formation of Supermicellar Hybrid Aggregates | When polyelectrolyte-neutral block copolymers are mixed in solutions to
oppositely charged species (e.g. surfactant micelles, macromolecules, proteins
etc), there is the formation of stable supermicellar aggregates combining both
components. The resulting colloidal complexes exhibit a core-shell structure
and the mecha... | 0411669v1 |
2006-01-10 | Superconductivity at 17 K in Yttrium Metal under Nearly Hydrostatic Pressures to 89 GPa | In an experiment in a diamond anvil cell utilizing helium pressure medium,
yttrium metal displays a superconducting transition temperature which increases
monotonically from Tc ? 3.5 K at 30 GPa to 17 K at 89.3 GPa, one of the highest
transition temperatures for any elemental superconductor. The pressure
dependence of ... | 0601213v1 |
2006-06-21 | Strong Electron-Phonon Coupling in Yttrium under Pressure | Linear response methods are applied to identify the increase in
electron-phonon coupling in elemental yttrium that is responsible for its high
superconducting critical temperature Tc, which reaches nearly 20 K at 115 GPa.
While the evolution of the band structure and density of states is smooth and
seemingly modest, th... | 0606538v1 |
2008-05-12 | Optical second harmonic generation in Yttrium Aluminum Borate single crystals (theoretical simulation and experiment) | Experimental measurements of the second order susceptibilities for the second
harmonic generation are reported for YAl3(BO3)4 (YAB) single crystals for the
two principal tensor components xyz and yyy. First principles calculation of
the linear and nonlinear optical susceptibilities for Yttrium Aluminum Borate
YAl3(BO3)... | 0805.1671v1 |
2010-07-15 | Origin of Tc Enhancement Induced by Doping Yttrium and Hydrogen into LaFeAsO-based Superconductors: 57Fe, 75As, 139La, and 1H-NMR Studies | We report our extensive 57Fe-, 75As-, 139La-, and 1H-NMR studies of
La_{0.8}Y_{0.2}FeAsO_{1-y} (La_{0.8}Y_{0.2}1111) and
LaFeAsO_{1-y}H_{x}(La1111H), where doping yttrium (Y) and hydrogen (H) into
optimally doped LaFeAsO_{1-y} (La1111(OPT)) increases T_c=28 K to 34 and 32 K,
respectively. In the superconducting (SC) st... | 1007.2514v2 |
2011-02-02 | Transparent yttrium hydride thin films prepared by reactive sputtering | Metal hydrides have earlier been suggested for utilization in solar cells.
With this as a motivation we have prepared thin films of yttrium hydride by
reactive magnetron sputter deposition. The resulting films are metallic for low
partial pressure of hydrogen during the deposition, and black or
yellow-transparent for h... | 1102.0450v2 |
2011-03-22 | Shape evolution in Yttrium and Niobium neutron-rich isotopes | The isotopic evolution of the ground-state nuclear shapes and the systematics
of one-quasiproton configurations are studied in neutron-rich odd-A Yttrium and
Niobium isotopes. We use a selfconsistent Hartree-Fock-Bogoliubov formalism
based on the Gogny energy density functional with two parametrizations, D1S and
D1M. T... | 1103.4285v1 |
2011-04-05 | Reactive Force Field for Proton Diffusion in BaZrO3 using an empirical valence bond approach | A new reactive force field to describe proton diffusion within the
solid-oxide fuel cell material BaZrO3 has been derived. Using a quantum
mechanical potential energy surface, the parameters of an interatomic potential
model to describe hydroxyl groups within both pure and yttrium-doped BaZrO3
have been determined. Rea... | 1104.0773v2 |
2011-09-13 | A new thin film photochromic material: Oxygen-containing yttrium hydride | In this work we report on photochromism in transparent thin film samples of
oxygen-containing yttrium hydride. Exposure to visible and ultraviolet (UV)
light at moderate intensity triggers a decrease in the optical transmission of
visible and infrared (IR) light. The photo-darkening is colour-neutral. We show
that the ... | 1109.2872v1 |
2014-02-15 | Quantifying and controlling the magnetic dipole contribution to 1.5 $μ$m light emission in erbium-doped yttrium oxide | We experimentally quantify the contribution of magnetic dipole (MD)
transitions to the near-infrared light emission from trivalent erbium-doped
yttrium oxide (Er$^{3+}$:Y$_2$O$_3$). Using energy-momentum spectroscopy, we
demonstrate that the $^4$I$_{13/2}{\to}^4$I$_{15/2}$ emission near 1.5 $\mu$m
originates from nearl... | 1402.3717v1 |
2014-10-01 | Effect of yttrium substitution on the superconducting properties of the system La$_{1-\textit{x}}$Y$_{\textit{x}}$O$_{0.5}$F$_{0.5}$BiS$_{2}$ | We present the effect of yttrium substitution on superconductivity in the
La$_{1-\textit{x}}$Y$_{\textit{x}}$O$_{0.5}$F$_{0.5}$BiS$_{2}$ system.
Polycrystalline samples with nominal Y concentrations up to 40% were
synthesized and characterized via electrical resistivity, magnetic
susceptibility, and specific heat measu... | 1410.0084v1 |
2015-09-17 | Nanoscale nonlinear effects in Erbium-implanted Yttrium Orthosilicate | Doping of substrates at desired locations is a key technology for spin-based
quantum memory devices. Focused ion beam implantation is well-suited for this
task due to its high spacial resolution. In this work, we investigate ion-beam
implanted erbium ensembles in Yttrium Orthosilicate crystals by means of
confocal phot... | 1509.05185v1 |
2015-10-26 | Weak ferromagnetism and magnetization reversal in YFe$_{1-x}$Cr$_x$O$_3$ | We present combined experimental and theoretical studies on the magnetic
properties of a solid solution between yttrium orthoferrite and yttrium
orthochromite systems, YFe$_{1-x}$Cr$_x$O$_3$ (0 $\leq$ x $\leq$ 1) where
Fe$^{3+}$ and Cr$^{3+}$ ions are distributed randomly at the same
crystallographic site (4b). We foun... | 1510.07548v1 |
2015-12-12 | High quality factor nanophotonic resonators in bulk rare-earth doped crystals | Numerous bulk crystalline materials exhibit attractive nonlinear and
luminescent properties for classical and quantum optical applications. A
chip-scale platform for high quality factor optical nanocavities in these
materials will enable new optoelectronic devices and quantum light-matter
interfaces. In this article, p... | 1512.03947v1 |
2017-05-23 | Reducing Graphene Device Variability with Yttrium Sacrificial Layers | Graphene technology has made great strides since the material was isolated
more than a decade ago. However, despite improvements in growth quality and
numerous 'hero' devices, challenges of uniformity remain, restricting
large-scale development of graphene-based technologies. Here we investigate and
reduce the variabil... | 1705.09388v1 |
2017-06-05 | Dy$^{3+}$-doped Yttrium Complex Molecular Crystals for Two-color Thermometry in Heterogeneous Materials | We develop Dy$^{3+}$-doped yttrium complexes for use as two-color thermometry
(TCT) phosphor molecular crystals in heterogeneous materials. These complexes
include: Dy:Y(acac)$_3$(phen), Dy:Y(hfa)$_3$(DPEPO), Dy:Y(4-BBA)$_3$(TPPO),
Dy:Y(acac)$_3$, and Dy:Y(acac)$_3$(DPEPO), where the Dy/Y ratio is 1:9. We
characterize ... | 1706.02658v1 |
2017-12-01 | Coherent spin dynamics of ytterbium ions in yttrium orthosilicate | We investigate the electron and nuclear spin coherence properties of
ytterbium ($\mathrm{Yb}^{3+}$) ions with non-zero nuclear spin, within an
yttrium orthosilicate (Y$_2$SiO$_5$) crystal, with a view to their potential
application in quantum memories or repeaters. We find electron spin-lattice
relaxation times are max... | 1712.00435v1 |
2018-02-12 | Long spin coherence times in the ground state and an optically excited state of $^{167}$Er$^{3+}$:Y$_2$SiO$_5$ at zero magnetic field | Spins in solids are an ideal candidate to act as a memory and interface with
superconducting qubits due to their long coherence times. We spectroscopically
investigate erbium-167-doped yttrium orthosilicate as a possible
microwave-addressed memory employing its microwave frequency transitions that
occur without applyin... | 1802.03862v2 |
2018-03-28 | Critical effect of cubic phase on aging in 3 mol% yttria-stabilized zirconia ceramics for hip replacement prosthesis | The isothermal tetragonal-to-monoclinic transformation of 3Y-TZP ceramics
sintered at two different temperatures (1450{\deg}C and 1550{\deg}C) and
duration (2 and 5 h) is investigated at 134{\deg}C in steam. Particular
attention is paid to the presence of a cubic phase and its effect on isothermal
aging. Sintering at 1... | 1803.10480v1 |
2019-01-13 | Superconductivity in sodalite-like yttrium hydride clathrates | We report ab-initio calculations of the superconducting properties of two
high-Tc sodalite-like clathrate yttrium hydrides, YH6 and YH10, within the
fully anisotropic ME theory, including Coulomb corrections. For both compounds
we find almost isotropic superconducting gaps, resulting from a uniform
distribution of the ... | 1901.04001v1 |
2019-08-08 | Localization of Yttrium Segregation within YSZ Grain Boundary Dislocation Cores | Ionic conductivity blocking at grain boundaries in polycrystalline
electrolytes is one of the main obstacles that need to be overcome in order to
improve the performance of solid state fuel cells and batteries. To this aim,
harnessing the physical properties of grain boundaries in ionic conducting
materials such as ytt... | 1908.03257v1 |
2020-09-15 | A new class of intrinsic magnet: two-dimensional yttrium sulphur selenide | Exploring and controlling magnetism in two-dimensional (2D) layered magnetic
crystals, as well as their inclusion in heterogeneous assemblies, provide an
unprecedented opportunity for fundamental science and technology. To date,
however, there are only a few known intrinsic 2D magnets. Here we predict a
novel 2D intrin... | 2009.07232v1 |
2020-10-26 | Optical properties of yttrium oxyhydrides: A comparative analysis with experiment | Based on the results of computational simulations, the research addresses a
broad range of electronic and optical properties which are typical for two most
stable compositions of the yttrium oxyhydride, Y4H10O and YHO. Emphasis was
placed on characteristics of thin films of different structural phases.
Macroscopic opti... | 2010.13502v1 |
2020-12-17 | High pressure computational search of trivalent lanthanide di-nitrides | Transition metal nitrides have attracted much interest of the scientific
community for their intriguing properties and technological applications. Here
we focus on yttrium dinitride (YN$_{2}$) and its formation and structural
transition under pressure. We employed a fixed composition USPEX search to find
the most stabl... | 2012.09576v1 |
2020-12-30 | Photochromic response of encapsulated oxygen-containing yttrium hydride thin films | Photochromic oxygen$-$containing yttrium$-$hydride thin films are synthesized
by argon$-$magnetron sputtering on microscope slides. Some of them are
encapsulated with a thin, transparent and non$-$photochromic diffusion-barrier
layer of either Al2O3 or Si3N4. Ion beam-based methods prove that these
protective diffusion... | 2012.15098v1 |
2022-02-17 | Proposal for transduction between microwave and optical photons using $\mathrm{^{167}Er}$-doped yttrium orthosilicate | Efficient transduction devices that reversibly convert optical and microwave
quantum signals into each other are essential for integrating different
technologies. Rare-earth ions in solids, and in particular Erbium ions, with
both optical and microwave addressable transitions are promising candidates for
designing tran... | 2202.08770v2 |
2022-08-01 | Distance calibration via Newton's rings in yttrium lithium fluoride whispering gallery mode resonators | In this work, we analyze the first whispering gallery mode resonator (WGMR)
made from monocrystalline yttrium lithium fluoride (YLF). The disc-shaped
resonator is fabricated using single-point diamond turning and exhibits a high
intrinsic quality factor ($Q$) on the order of $10^9$. Moreover, we employ a
novel method b... | 2208.00667v2 |
2024-02-22 | Rare-earth doped yttrium silicate (Y2SiO5) thin films grown by chemical vapour deposition for quantum technologies | Yttrium orthosilicate (Y2SiO5 - YSO) is one of the most promising crystals to
host rare-earth (RE) ions for quantum technologies applications. In this
matrix, they indeed exhibit narrow optical and spin linewidths that can be
exploited to develop quantum memories or quantum information processing
capabilities. In this ... | 2402.14445v1 |
2004-10-29 | Magnetic properties of polypyrrole - coated iron oxide nanoparticles | Iron oxide nanoparticles were prepared by sol -gel process. Insitu
polymerization of pyrrole monomer in the presence of oxygen in iron oxide
ethanol suspension resulted in a iron oxide - polypyrrole nanocomposite. The
structure and magnetic properties were investigated for varying pyrrole
concentrations. The presence o... | 0410760v1 |
2011-12-12 | Nematic orders in Iron-based superconductors | In the newly discovered iron-based superconductors, many experiments have
demonstrated the existence of the rotational symmetry breaking nematic order,
which has been a prevailing phenomenon in many correlated electronic systems.
In this paper, we review nematic behaviors in iron-pnictides and the mechanism
behind the ... | 1112.2713v1 |
2013-01-30 | Properties of Liquid Iron along the Melting Line up to the Earth-core Pressures | We report a molecular dynamics study of transport coefficients and infinite
frequency shear mod- ulus of liquid iron at high temperatures and high
pressures. We observe a simultaneous rise of both shear viscosity and diffusion
coefficient along the melting line and estimate if liquid iron can vitrify
under Earth-core c... | 1301.7158v1 |
2013-07-30 | Synthesis of Self-assembled Iron Silicon Oxide Nanowires onto Single-crystalline Si(100) | Iron silicon oxide nanowire has been synthesized by putting single
crystalline Si(100) wafer into ammonium iron sulfate, hydrogen peroxide, and
triethylamine solution heated to from 70 to 100 degree in the air. The prepared
iron silicon oxide nanowires with diameters of about 10nm (onto non etched
Si(100) wafer) and ab... | 1307.7783v1 |
2015-12-17 | Antiferromagnetism enables electron-phonon coupling in iron-based superconductors | It is shown that a generic form of an antiferromagnetic wave function opens
strong electron-phonon coupling channels in the iron-based superconductors. In
the nonmagnetic state these channels exist locally on a single iron atom, but
are canceled out between the two iron atoms in the primitive unit cell. Our
findings ar... | 1512.05818v2 |
2018-11-22 | Interior structure of Mars and other rock-and-iron planetary bodies | Here it is shown how to find the interior structure of a variety of
rock-and-iron planetary bodies by using the rock density and some aspects of
the core density as known for the Earth and using a convection principle for
the iron-rich core. Convection minimizes both the density and temperature
gradients inside the cor... | 1811.09198v1 |
2001-04-27 | Faraday rotation spectra of bismuth-substituted ferrite garnet films with in-plane magnetization | Single crystalline films of bismuth-substituted ferrite garnets have been
synthesized by the liquid phase epitaxy method where GGG substrates are dipped
into the flux. The growth parameters are controlled to obtain films with
in-plane magnetization and virtually no domain activity, which makes them
excellently suited f... | 0104536v3 |
2003-07-11 | Photoproduction of Long-Lived Holes and Electronic Processes in Intrinsic Electric Fields Seen through Photoinduced Absorption and Dichroism in Ca_3Ga_{2-x}Mn_xGe_3O_{12} Garnets | Long-lived photoinduced absorption and dichroism in the
Ca_3Ga_{2-x}Mn_xGe_3O_{12} garnets with x < 0.06 were examined versus
temperature and pumping intensity. Unusual features of the kinetics of
photoinduced phenomena are indicative of the underlying electronic processes.
The comparison with the case of Ca_3Mn_2Ge_3O... | 0307273v1 |
2003-09-08 | Absence of magnetic order in Yb3Ga5O12: relation between phase transition and entropy in geometrically frustrated materials | From muon spin relaxation spectroscopy experiments, we show that the sharp
peak (lambda type anomaly) detected by specific heat measurements at 54 mK for
the ytterbium gallium garnet compound, Yb3Ga5O12, does not correspond to the
onset of a magnetic phase transition, but to a pronounced building up of
dynamical magnet... | 0309185v1 |
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