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Dissipative Mechanisms in SNS Junctions and Magnetic Vortex Lattices
Dissipative Mechanisms in SNS Junctions and Magnetic Vortex Lattices
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151952
- ISBN
- 9798383222218
- DDC
- 530
- 저자명
- Liu, Yuankang.
- 서명/저자
- Dissipative Mechanisms in SNS Junctions and Magnetic Vortex Lattices
- 발행사항
- [Sl] : University of Washington, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 74 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-01, Section: B.
- 주기사항
- Advisor: Spivak, Boris.
- 학위논문주기
- Thesis (Ph.D.)--University of Washington, 2024.
- 초록/해제
- 요약When a normal metal is subject to an external field and a transport current is induced, the dissipation rate is typically controlled by the elastic scattering time of the quasiparticles. In superconductors, the presence of the superfluid condensate complicates quasi-particle dynamics, and as a result the dissipation rate can depend on additional time scales. In particular, when the condensate is accelerated by the external field, a spectral flow of quasi-particle energy levels are induced, resulting in a mechanism of dissipation which is controlled by the inelastic relaxation time. In this work I theoretically investigate the role of this mechanism in two experimentally relevant superconducting systems: superconductor-normal metal-superconductor junctions and magnetic vortex lattices formed in type-II superconducting films. In the former, I develop a theory of current-voltage characteristics and show that there is a regime at small voltages/currents with features that are distinct from the large voltage/current regime, which is described by the conventional theory. In the latter, I calculate the microwave absorption coefficient and show that there is a broad range of parameters where the mechanism of dissipation related to spectral flow gives the dominant contribution.
- 일반주제명
- Physics
- 일반주제명
- Condensed matter physics
- 일반주제명
- Engineering
- 일반주제명
- Theoretical physics
- 기타저자
- University of Washington Physics
- 기본자료저록
- Dissertations Abstracts International. 86-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151952
■006m o d
■007cr#unu||||||||
■020 ▼a9798383222218
■035 ▼a(MiAaPQ)AAI31328627
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aLiu, Yuankang.
■24510▼aDissipative Mechanisms in SNS Junctions and Magnetic Vortex Lattices
■260 ▼a[Sl]▼bUniversity of Washington▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a74 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-01, Section: B.
■500 ▼aAdvisor: Spivak, Boris.
■5021 ▼aThesis (Ph.D.)--University of Washington, 2024.
■520 ▼aWhen a normal metal is subject to an external field and a transport current is induced, the dissipation rate is typically controlled by the elastic scattering time of the quasiparticles. In superconductors, the presence of the superfluid condensate complicates quasi-particle dynamics, and as a result the dissipation rate can depend on additional time scales. In particular, when the condensate is accelerated by the external field, a spectral flow of quasi-particle energy levels are induced, resulting in a mechanism of dissipation which is controlled by the inelastic relaxation time. In this work I theoretically investigate the role of this mechanism in two experimentally relevant superconducting systems: superconductor-normal metal-superconductor junctions and magnetic vortex lattices formed in type-II superconducting films. In the former, I develop a theory of current-voltage characteristics and show that there is a regime at small voltages/currents with features that are distinct from the large voltage/current regime, which is described by the conventional theory. In the latter, I calculate the microwave absorption coefficient and show that there is a broad range of parameters where the mechanism of dissipation related to spectral flow gives the dominant contribution.
■590 ▼aSchool code: 0250.
■650 4▼aPhysics
■650 4▼aCondensed matter physics
■650 4▼aEngineering
■650 4▼aTheoretical physics
■653 ▼aConventional theory
■653 ▼aElastic scattering
■653 ▼aSuperconducting systems
■653 ▼aMicrowave absorption
■653 ▼aQuasi-particle energy
■690 ▼a0605
■690 ▼a0753
■690 ▼a0537
■690 ▼a0611
■71020▼aUniversity of Washington▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-01B.
■790 ▼a0250
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162262▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
