| (Bonn et al. 2001) with | |
| v | |
| Collectively these magnetic imaging studies deepen our knowledge of cuprate superconductivity, especially in the important regime of low superfluid density. | |
| Collectively these magnetic imaging studies deepen our knowledge of cuprate superconductivity, especially in the important regime of low . | |
| vi | |
| null results, placing upper bounds on the vison energy inconsistent with the theory. | |
| Chapter 5 discusses imaging of isolated vortices as a function of Tc . Vortex images | |
| were fit with theoretical magnetic field profiles in order to extract the apparent vortex | |
| size. The data for the lowest Tc ’s (5 and 6.5 K) show some inhomogeneity and suggest | |
| that λab might be larger than predicted by the Tc ∝ ns (0)/m∗ relation first suggested | |
| by results of Uemura et al. (1989) for underdoped cuprates. Finally, Chapter 6 examines observations of apparent “partial vortices” in the crystals. My studies of | |
| these features indicate that they are likely split pancake vortex stacks. Qualitatively, | |
| these split stacks reveal information about pinning and anisotropy in the samples. | |
| Collectively these magnetic imaging studies deepen our knowledge of cuprate superconductivity, especially in the important regime of low superfluid density. | |
| vi | |
| Acknowledgements | |
| First and foremost I want to thank my advisor Kathryn (Kam) Moler. It has been | |
| an honor to be her first Ph.D. student. She has taught me, both consciously and unconsciously, how good experimental physics is done. I appreciate all her contributions | |
| of time, ideas, and funding to make my Ph.D. experience productive and stimulating. | |
| The joy and enthusiasm she has for her research was contagious and motivational for | |
| me, even during tough times in the Ph.D. pursuit. I am also thankful for the excellent | |
| example she has provided as a successful woman physicist and professor. | |
| The members of the Moler group have contributed immensely to my personal and | |
| professional time at Stanford. The group has been a source of friendships as well as | |
| good advice and collaboration. I am especially grateful for the fun group of original | |
| Moler group members who stuck it out in grad school with me: Brian Gardner, Per | |
| Björnsson, and Eric Straver. I would like to acknowledge honorary group member | |
| Doug Bonn who was here on sabbatical a couple years ago. We worked together (along | |
| with Brian) on the spin-charge separation experiments, and I very much appreciated | |
| his enthusiasm, intensity, willingness to do frequent helium transfers, and amazing | |
| ability to cleave and manipulate ∼50 nm crystals. Other past and present group | |
| members that I have had the pleasure to work with or alongside of are grad students | |
| Hendrik Bluhm, Clifford Hicks, Yu-Ju Lin, Zhifeng Deng and Rafael Dinner; postdocs | |
| Mark Topinka and Jenny Hoffman; and the numerous summer and rotation students | |
| who have come through the lab. | |
| In regards to the Hall probes, I thank Ds | |
| Acknowledgements | |
| First and foremost I want to thank my advisor Kathryn (Kam) Moler. It has been | |
| an honor to be her first Ph.D. student. She has taught me, both consciously and unconsciously, how good experimental physics is done. I appreciate all her contributions | |
| of time, ideas, and funding to make my Ph.D. experience productive and stimulating. | |
| The joy and enthusiasm she has for her research was contagious and motivational for | |
| me, even during tough times in the Ph.D. pursuit. I am also thankful for the excellent | |
| example she has provided as a successful woman physicist and professor. | |
| The members of the Moler group have contributed immensely to my personal and | |
| professional time at Stanford. The group has been a source of friendships as well as | |
| good advice and collaboration. I am especially grateful for the fun group of original | |
| Moler group members who stuck it out in grad school with me: Brian Gardner, Per | |
| Björnsson, and Eric Straver. I would like to acknowledge honorary group member | |
| Doug Bonn who was here on sabbatical a couple years ago. We worked together (along | |
| with Brian) on the spin-charge separation experiments, and I very much appreciated | |
| his enthusiasm, intensity, willingness to do frequent helium transfers, and amazing | |
| ability to cleave and manipulate ∼50 nm crystals. Other past and present group | |
| members that I have had the pleasure to work with or alongside of are grad students | |
| Hendrik Bluhm, Clifford Hicks, Yu-Ju Lin, Zhifeng Deng and Rafael Dinner; postdocs | |
| Mark Topinka and Jenny Hoffman; and the numerous summer and rotation students | |
| who have come through the lab. | |
| In regards to the Hall probes, I thank Dsjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj | |
| st (Bonn et al. 2001) with | |
| v | |
| null results, placing upper bounds on the vison energy inconsistent with the theory. | |
| Chapter 5 discusses imaging of isolated vortices as a function of Tc . Vortex images | |
| were fit with theoretical magnetic field profiles in order to extract the apparent vortex | |
| size. The data for the lowest Tc ’s (5 and 6.5 K) show some inhomogeneity and suggest | |
| that λab might be larger than predicted by the Tc ∝ ns (0)/m∗ relation first suggested | |
| by results of Uemura et al. (1989) for underdoped cuprates. Finally, Chapter 6 examines observations of apparent “partial vortices” in the crystals. My studies of | |
| these features indicate that they are likely split pancake vortex stacks. Qualitatively, | |
| these split stacks reveal information about pinning and anisotropy in the samples. | |
| Collectively these magnetic imaging studies deepen our knowledge of cuprate superconductivity, especially in the important regime of low superfluid density. | |
| vi | |
| Acknowledgements | |
| First and foremost I want to thank my advisor Kathryn (Kam) Moler. It has been | |
| an honor to be her first Ph.D. student. She has taught me, both consciously and unconsciously, how good experimental physics is done. I appreciate all her contributions | |
| of time, ideas, and funding to make my Ph.D. experience productive and stimulating. | |
| The joy and enthusiasm she has for her research was contagious and motivational for | |
| me, even during tough times in the Ph.D. pursuit. I am also thankful for the excellent | |
| example she has provided as a successful woman physicist and professor. | |
| The members of the Moler group have contributed immensely to my personal and | |
| professional time at Stanford. The group has been a source of friendships as well as | |
| good advice and collaboration. I am especially grateful for the fun group of original | |
| Moler group members who stuck it out in grad school with me: Brian Gardner, Per | |
| Björnsson, and Eric Straver. I would like to acknowledge honorary group member | |
| Doug Bonn who was here on sabbatical a couple years ago. We worked together (along | |
| with Brian) on the spin-charge separation experiments, and I very much appreciated | |
| his enthusiasm, intensity, willingness to do frequent helium transfers, and amazing | |
| ability to cleave and manipulate ∼50 nm crystals. Other past and present group | |
| members that I have had the pleasure to work with or alongside of are grad students | |
| Hendrik Bluhm, Clifford Hicks, Yu-Ju Lin, Zhifeng Deng and Rafael Dinner; postdocs | |
| Mark Topinka and Jenny Hoffman; and the numerous summer and rotation students | |
| who have come through the lab. | |
| In regards to the Hall probes, I thank Ds | |
| Acknowledgements | |
| First and foremost I want to thank my advisor Kathryn (Kam) Moler. It has been | |
| an honor to be her first Ph.D. student. She has taught me, both consciously and unconsciously, how good experimental physics is done. I appreciate all her contributions | |
| of time, ideas, and funding to make my Ph.D. experience productive and stimulating. | |
| The joy and enthusiasm she has for her research was contagious and motivational for | |
| me, even during tough times in the Ph.D. pursuit. I am also thankful for the excellent | |
| example she has provided as a successful woman physicist and professor. | |
| The members of the Moler group have contributed immensely to my personal and | |
| professional time at Stanford. The group has been a source of friendships as well as | |
| good advice and collaboration. I am especially grateful for the fun group of original | |
| Moler group members who stuck it out in grad school with me: Brian Gardner, Per | |
| Björnsson, and Eric Straver. I would like to acknowledge honorary group member | |
| Doug Bonn who was here on sabbatical a couple years ago. We worked together (along | |
| with Brian) on the spin-charge separation experiments, and I very much appreciated | |
| his enthusiasm, intensity, willingness to do frequent helium transfers, and amazing | |
| ability to cleave and manipulate ∼50 nm crystals. Other past and present group | |
| members that I have had the pleasure to work with or alongside of are grad students | |
| Hendrik Bluhm, Clifford Hicks, Yu-Ju Lin, Zhifeng Deng and Rafael Dinner; postdocs | |
| Mark Topinka and Jenny Hoffman; and the numerous summer and rotation students | |
| who have come through the lab. | |
| In regards to the Hall probes, I thank Dsjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj |