Details
Electronic and Magnetic Excitations in Correlated and Topological Materials
Springer Theses
117,69 € |
|
Verlag: | Springer |
Format: | |
Veröffentl.: | 17.05.2018 |
ISBN/EAN: | 9783319899381 |
Sprache: | englisch |
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Beschreibungen
This thesis reports a major breakthrough in discovering the superconducting mechanism in CeCoIn<sub>5</sub>, the “hydrogen atom” among heavy fermion compounds. By developing a novel theoretical formalism, the study described herein succeeded in extracting the crucial missing element of superconducting pairing interaction from scanning tunneling spectroscopy experiments. This breakthrough provides a theoretical explanation for a series of puzzling experimental observations, demonstrating that strong magnetic interactions provide the <i>quantum glue</i> for unconventional superconductivity. Additional insight into the complex properties of strongly correlated and topological materials was provided by investigating their non-equilibrium charge and spin transport properties. The findings demonstrate that the interplay of magnetism and disorder with strong correlations or topology leads to complex and novel behavior that can be exploited to create the next generation of spin electronics and quantum computing devices.
Introduction.- Superconducting Gap in CeCoIn<sub>5</sub>.- Pairing Mechanism in CeCoIn<sub>5</sub>.- Real and Momentum Space Probes in CeCoIn<sub>5</sub>: Defect States in Differential Conductance and Neutron Scattering Spin Resonance.- Transport in Nanoscale Kondo Lattices.- Charge and Spin Currents in Nanoscale Topological Insulators.- Conclusions.- Appendix: Keldysh Formalism for Transport.
John Van Dyke is a postdoctoral researcher at the University of Iowa. He obtained his PhD from the University of Illinois, Chicago.
This thesis reports a major breakthrough in discovering the superconducting mechanism in CeCoIn<sub>5</sub>, the “hydrogen atom” among heavy fermion compounds. By developing a novel theoretical formalism, the study described herein succeeded in extracting the crucial missing element of superconducting pairing interaction from scanning tunneling spectroscopy experiments. This breakthrough provides a theoretical explanation for a series of puzzling experimental observations, demonstrating that strong magnetic interactions provide the <i>quantum glue</i> for unconventional superconductivity. Additional insight into the complex properties of strongly correlated and topological materials was provided by investigating their non-equilibrium charge and spin transport properties. The findings demonstrate that the interplay of magnetism and disorder with strong correlations or topology leads to complex and novel behavior that can be exploited to create the next generation of spinelectronics and quantum computing devices.
Nominated as an outstanding Ph.D. thesis by the University of Illinois, Chicago Provides a theoretical explanation for a series of puzzling experimental observations around unconventional superconductivity Develops a novel theoretical formalism for extracting the superconducting pairing interaction from scanning tunneling spectroscopy experiments Offers readers insight into the possibilities for the next generation of spin electronics and quantum computing devices
<div>Nominated as an outstanding Ph.D. thesis by the University of Illinois, Chicago</div><div><br></div><div>Provides a theoretical explanation for a series of puzzling experimental observations around unconventional superconductivity<br></div><div><br></div><div>Develops a novel theoretical formalism for extracting the superconducting pairing interaction from scanning tunneling spectroscopy experiments</div><div><br></div><div>Offers readers insight into the possibilities for the next generation of spin electronics and quantum computing devices</div><div><br></div>
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