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Investigations Into the Electronic States of 2D Quantum Material WTe2
Investigations Into the Electronic States of 2D Quantum Material WTe2
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152015
- ISBN
- 9798384096221
- DDC
- 530
- 서명/저자
- Investigations Into the Electronic States of 2D Quantum Material WTe2
- 발행사항
- [Sl] : University of Washington, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 105 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Cobden, David H.
- 학위논문주기
- Thesis (Ph.D.)--University of Washington, 2024.
- 초록/해제
- 요약Quantum materials are those whose properties cannot be explained without invoking quantum mechanics. This broad class of materials includes superconductors, topological insulators, magnets, and Weyl semimetals. These materials are of great research interest to both better understand nature as well as to harness their unique properties for further technological development. With the successful isolation of graphene, the field of 2D materials was born. The restriction in dimension changes the physics of the electrons, in addition to allowing for increased control over the material properties using electrostatic gates, whose effectiveness is highly limited in 3D.This thesis focuses on the electronic properties of the 2D quantum material WTe2. Following a brief background on the history of WTe2, I will discuss our studies of the spin-axis of the edge states of monolayer WTe2, demonstrating the helical nature of these states and thus confirming that WTe2 is a 2D topological insulator. Next, I will report on our experiments to study the edge states at millikelvin temperatures, where the linear conductance of the edges freezes out. From there, I will report on new data from high-quality crystals grown from the so-called "horizontal flux" technique. I will show how WTe2 has a stronger superconducting state than previously reported, showing strong density dependence while having a critical temperature larger than 1.5 K. We also report unambiguous evidence of the presence of Shubnikov-de Haas oscillations in monolayer WTe2.
- 일반주제명
- Condensed matter physics
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 일반주제명
- Mechanics
- 키워드
- Weyl semimetals
- 키워드
- Horizontal flux
- 키워드
- Graphene
- 기타저자
- University of Washington Physics
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152015
■006m o d
■007cr#unu||||||||
■020 ▼a9798384096221
■035 ▼a(MiAaPQ)AAI31331710
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aRunburg, Elliott.
■24510▼aInvestigations Into the Electronic States of 2D Quantum Material WTe2
■260 ▼a[Sl]▼bUniversity of Washington▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a105 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Cobden, David H.
■5021 ▼aThesis (Ph.D.)--University of Washington, 2024.
■520 ▼aQuantum materials are those whose properties cannot be explained without invoking quantum mechanics. This broad class of materials includes superconductors, topological insulators, magnets, and Weyl semimetals. These materials are of great research interest to both better understand nature as well as to harness their unique properties for further technological development. With the successful isolation of graphene, the field of 2D materials was born. The restriction in dimension changes the physics of the electrons, in addition to allowing for increased control over the material properties using electrostatic gates, whose effectiveness is highly limited in 3D.This thesis focuses on the electronic properties of the 2D quantum material WTe2. Following a brief background on the history of WTe2, I will discuss our studies of the spin-axis of the edge states of monolayer WTe2, demonstrating the helical nature of these states and thus confirming that WTe2 is a 2D topological insulator. Next, I will report on our experiments to study the edge states at millikelvin temperatures, where the linear conductance of the edges freezes out. From there, I will report on new data from high-quality crystals grown from the so-called "horizontal flux" technique. I will show how WTe2 has a stronger superconducting state than previously reported, showing strong density dependence while having a critical temperature larger than 1.5 K. We also report unambiguous evidence of the presence of Shubnikov-de Haas oscillations in monolayer WTe2.
■590 ▼aSchool code: 0250.
■650 4▼aCondensed matter physics
■650 4▼aPhysics
■650 4▼aQuantum physics
■650 4▼aMechanics
■653 ▼aQuantum materials
■653 ▼aElectronic properties
■653 ▼aWeyl semimetals
■653 ▼aHorizontal flux
■653 ▼aGraphene
■690 ▼a0611
■690 ▼a0346
■690 ▼a0599
■690 ▼a0605
■71020▼aUniversity of Washington▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0250
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162464▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
