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Local Thermodynamic Measurements of Semiconductor Moire Systems.
Local Thermodynamic Measurements of Semiconductor Moire Systems.
상세정보
- 자료유형
- 학위논문
- Control Number
- 0017163718
- International Standard Book Number
- 9798342107303
- Dewey Decimal Classification Number
- 515.39
- Main Entry-Personal Name
- Rios, Carlos Roberto Kometter.
- Publication, Distribution, etc. (Imprint
- [S.l.] : Stanford University., 2024
- Publication, Distribution, etc. (Imprint
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- Physical Description
- 239 p.
- General Note
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- General Note
- Advisor: Feldman, Ben.
- Dissertation Note
- Thesis (Ph.D.)--Stanford University, 2024.
- Summary, Etc.
- 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.
- Subject Added Entry-Topical Term
- Fractals.
- Subject Added Entry-Topical Term
- Phase transitions.
- Subject Added Entry-Topical Term
- Energy.
- Subject Added Entry-Topical Term
- Electrons.
- Subject Added Entry-Topical Term
- Transistors.
- Subject Added Entry-Topical Term
- Quantum dots.
- Subject Added Entry-Topical Term
- Magnetic fields.
- Subject Added Entry-Topical Term
- Electric fields.
- Subject Added Entry-Topical Term
- Atomic physics.
- Subject Added Entry-Topical Term
- Electromagnetics.
- Subject Added Entry-Topical Term
- Quantum physics.
- Subject Added Entry-Topical Term
- Thermodynamics.
- Added Entry-Corporate Name
- Stanford University.
- Host Item Entry
- Dissertations Abstracts International. 86-04B.
- Electronic Location and Access
- 로그인을 한후 보실 수 있는 자료입니다.
- Control Number
- joongbu:658407
MARC
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■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[S.l.]▼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.
