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Local Thermodynamic Measurements of Semiconductor Moire Systems
Local Thermodynamic Measurements of Semiconductor Moire Systems
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152744
- ISBN
- 9798342107303
- DDC
- 515.39
- 서명/저자
- Local Thermodynamic Measurements of Semiconductor Moire Systems
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 239 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- 주기사항
- Advisor: Feldman, Ben.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약Semiconductor moire superlattices provide an ideal platform to study strongly correlated quantum phases due to their high degree of tunability and the diverse array of interaction-driven ground states they host. These superlattices are formed by stacking two or more two-dimensional semiconductors with a slight twist or lattice mismatch, resulting in a periodic moire pattern with a much larger unit cell compared to the original lattices.In this thesis, I present a series of local electronic compressibilty measurements using a scanning single-electron transistor (SET) to analyze local properties of correlated states in semiconductor moire systems. First, I review two phenomena in lattice systems with very large lattice constants: Hofstadter's physics and generalized Wigner crystals (GWC). By employing a scanning SET, we achieve high-resolution measurements of the local electronic compressibility and chemical potential in these moire superlattices.Then, I describe measurements of a twisted WSe2/MoSe2heterobilayer, where the coexistence of flat and dispersive moire bands leads to intricate competition between Hofstadter and GWCs. I discuss how these charge-ordered states form spatial domains and how these domains respond to twist angle disorder and both intrinsic and extrinsic potentials at mesoscopic scales. Finally, I present measurements on twisted bilayer WSe2, where interlayer tunneling must be taken into account and leads to topological bands.
- 일반주제명
- Fractals
- 일반주제명
- Phase transitions
- 일반주제명
- Energy
- 일반주제명
- Electrons
- 일반주제명
- Transistors
- 일반주제명
- Quantum dots
- 일반주제명
- Magnetic fields
- 일반주제명
- Electric fields
- 일반주제명
- Atomic physics
- 일반주제명
- Electromagnetics
- 일반주제명
- Quantum physics
- 일반주제명
- Thermodynamics
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 86-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152744
■006m o d
■007cr#unu||||||||
■020 ▼a9798342107303
■035 ▼a(MiAaPQ)AAI31520268
■035 ▼a(MiAaPQ)Stanfordfn043zj8338
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a515.39
■1001 ▼aRios, Carlos Roberto Kometter.
■24510▼aLocal Thermodynamic Measurements of Semiconductor Moire Systems
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a239 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: B.
■500 ▼aAdvisor: Feldman, Ben.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aSemiconductor moire superlattices provide an ideal platform to study strongly correlated quantum phases due to their high degree of tunability and the diverse array of interaction-driven ground states they host. These superlattices are formed by stacking two or more two-dimensional semiconductors with a slight twist or lattice mismatch, resulting in a periodic moire pattern with a much larger unit cell compared to the original lattices.In this thesis, I present a series of local electronic compressibilty measurements using a scanning single-electron transistor (SET) to analyze local properties of correlated states in semiconductor moire systems. First, I review two phenomena in lattice systems with very large lattice constants: Hofstadter's physics and generalized Wigner crystals (GWC). By employing a scanning SET, we achieve high-resolution measurements of the local electronic compressibility and chemical potential in these moire superlattices.Then, I describe measurements of a twisted WSe2/MoSe2heterobilayer, where the coexistence of flat and dispersive moire bands leads to intricate competition between Hofstadter and GWCs. I discuss how these charge-ordered states form spatial domains and how these domains respond to twist angle disorder and both intrinsic and extrinsic potentials at mesoscopic scales. Finally, I present measurements on twisted bilayer WSe2, where interlayer tunneling must be taken into account and leads to topological bands.
■590 ▼aSchool code: 0212.
■650 4▼aFractals
■650 4▼aPhase transitions
■650 4▼aEnergy
■650 4▼aElectrons
■650 4▼aTransistors
■650 4▼aQuantum dots
■650 4▼aMagnetic fields
■650 4▼aElectric fields
■650 4▼aAtomic physics
■650 4▼aElectromagnetics
■650 4▼aQuantum physics
■650 4▼aThermodynamics
■690 ▼a0791
■690 ▼a0748
■690 ▼a0607
■690 ▼a0599
■690 ▼a0348
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-04B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163718▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


