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Engineering Correlation, Topology, and Coherence in Graphene-Based Heterostructures
Engineering Correlation, Topology, and Coherence in Graphene-Based Heterostructures
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105114
- ISBN
- 9798293893683
- DDC
- 530
- 저자명
- Wang, Tianle.
- 서명/저자
- Engineering Correlation, Topology, and Coherence in Graphene-Based Heterostructures
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 161 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
- 주기사항
- Advisor: Zaletel, Michael P.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약Two-dimensional van der Waals heterostructures enable unprecedented control over electronic bandwidth, symmetry, and topology-ingredients that stabilize interaction-driven correlation and coherence in flat bands. This thesis develops a cohesive framework, across four graphene-based platforms, for engineering and diagnosing correlation-topology-coherence interplay by tuning twist, substrate, stacking, and magnetic field. (1) DMRG shows that tiny heterostrain in magic-angle graphene reshapes flat bands and switches between topological and trivial intervalley-coherent order and metallic states. (2) Transition-metal-dichalcogenide proximity introduces spin-orbit coupling that selects flat-band topology, yielding valley Chern and time-reversal topological insulators. (3) In rhombohedral multilayers aligned to hBN, interactions produce an isolated |C| = 1 Chern band and an anomalous Hall crystal that survives even without moire potential. (4) In quantum-Hall bilayers, we propose a gate-defined exciton-condensate Josephson junction with realistic readouts for supercurrent response. Together, these results chart complementary pathways to flatten bands, select topology, and reveal phase coherence in graphene systems, offering concrete device principles for interaction-enabled quantum electronics.
- 일반주제명
- Condensed matter physics
- 일반주제명
- Engineering
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 키워드
- Topology
- 키워드
- Coherence
- 키워드
- Graphene systems
- 기타저자
- University of California, Berkeley Physics
- 기본자료저록
- Dissertations Abstracts International. 87-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105114
■006m o d
■007cr#unu||||||||
■020 ▼a9798293893683
■035 ▼a(MiAaPQ)AAI32237281
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aWang, Tianle.
■24510▼aEngineering Correlation, Topology, and Coherence in Graphene-Based Heterostructures
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a161 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-04, Section: B.
■500 ▼aAdvisor: Zaletel, Michael P.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aTwo-dimensional van der Waals heterostructures enable unprecedented control over electronic bandwidth, symmetry, and topology-ingredients that stabilize interaction-driven correlation and coherence in flat bands. This thesis develops a cohesive framework, across four graphene-based platforms, for engineering and diagnosing correlation-topology-coherence interplay by tuning twist, substrate, stacking, and magnetic field. (1) DMRG shows that tiny heterostrain in magic-angle graphene reshapes flat bands and switches between topological and trivial intervalley-coherent order and metallic states. (2) Transition-metal-dichalcogenide proximity introduces spin-orbit coupling that selects flat-band topology, yielding valley Chern and time-reversal topological insulators. (3) In rhombohedral multilayers aligned to hBN, interactions produce an isolated |C| = 1 Chern band and an anomalous Hall crystal that survives even without moire potential. (4) In quantum-Hall bilayers, we propose a gate-defined exciton-condensate Josephson junction with realistic readouts for supercurrent response. Together, these results chart complementary pathways to flatten bands, select topology, and reveal phase coherence in graphene systems, offering concrete device principles for interaction-enabled quantum electronics.
■590 ▼aSchool code: 0028.
■650 4▼aCondensed matter physics
■650 4▼aEngineering
■650 4▼aPhysics
■650 4▼aQuantum physics
■653 ▼aEngineering correlation
■653 ▼aTopology
■653 ▼aCoherence
■653 ▼aGraphene systems
■690 ▼a0611
■690 ▼a0599
■690 ▼a0537
■690 ▼a0605
■71020▼aUniversity of California, Berkeley▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g87-04B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359401▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
