Persistent Link:
http://hdl.handle.net/10150/301737
Title:
Aspects of Linear and Nonlinear Transport in Mesoscopic Systems
Author:
Meair, Jonathan Isaac
Issue Date:
2013
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Embargo:
Release after 06-Aug-2015
Abstract:
We begin this thesis with a general introduction to mesoscopic physics and the scattering approach to transport. The subsequent chapters are broken up into two related topics in mesoscopic physics. The first of these topics, in Chapters 2 and 3, focuses on developing a scattering approach to treat weakly nonlinear transport of charge and heat through mesoscopic systems. In Chapter 2 we develop a weakly nonlinear theory for thermoelectric transport in purely metallic systems while emphasizing its importance in the study of thermoelectric efficiencies. In Chapter 3 we extend the theory to treat electric current rectification in metallic systems contacted to superconducting islands. The next topic we discuss is on how electric current noise can be used to make measurements in mesoscopic systems. In Chapter 4 we demonstrate that electric current noise in a temperature probe can provide a measure of an "effective" local temperature in a non-equilibrium system. We show that this electrical measurement is consistent with a thermal measurement of the temperature probe, within the limit of the validity of a Sommerfeld expansion. Finally, in Chapter 5 we describe how current noise can be used to measure spin accumulation in reservoirs connected to a scatterer with strong spin-orbit coupling. Throughout this thesis we emphasize conservation relations and provide general multi-terminal expressions whenever possible.
Type:
text; Electronic Dissertation
Keywords:
Physics
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Graduate College; Physics
Degree Grantor:
University of Arizona
Advisor:
Jacquod, Philippe R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleAspects of Linear and Nonlinear Transport in Mesoscopic Systemsen_US
dc.creatorMeair, Jonathan Isaacen_US
dc.contributor.authorMeair, Jonathan Isaacen_US
dc.date.issued2013-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.releaseRelease after 06-Aug-2015en_US
dc.description.abstractWe begin this thesis with a general introduction to mesoscopic physics and the scattering approach to transport. The subsequent chapters are broken up into two related topics in mesoscopic physics. The first of these topics, in Chapters 2 and 3, focuses on developing a scattering approach to treat weakly nonlinear transport of charge and heat through mesoscopic systems. In Chapter 2 we develop a weakly nonlinear theory for thermoelectric transport in purely metallic systems while emphasizing its importance in the study of thermoelectric efficiencies. In Chapter 3 we extend the theory to treat electric current rectification in metallic systems contacted to superconducting islands. The next topic we discuss is on how electric current noise can be used to make measurements in mesoscopic systems. In Chapter 4 we demonstrate that electric current noise in a temperature probe can provide a measure of an "effective" local temperature in a non-equilibrium system. We show that this electrical measurement is consistent with a thermal measurement of the temperature probe, within the limit of the validity of a Sommerfeld expansion. Finally, in Chapter 5 we describe how current noise can be used to measure spin accumulation in reservoirs connected to a scatterer with strong spin-orbit coupling. Throughout this thesis we emphasize conservation relations and provide general multi-terminal expressions whenever possible.en_US
dc.typetexten_US
dc.typeElectronic Dissertationen_US
dc.subjectPhysicsen_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePhysicsen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorJacquod, Philippe R.en_US
dc.contributor.committeememberStafford, Charles A.en_US
dc.contributor.committeememberZhang, Shufengen_US
dc.contributor.committeememberWang, Weigangen_US
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