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Infrared Nanoscopy of Anisotropic and Correlated Quantum Materials
Infrared Nanoscopy of Anisotropic and Correlated Quantum Materials
Infrared Nanoscopy of Anisotropic and Correlated Quantum Materials

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211153021
ISBN  
9798896076018
DDC  
530
저자명  
Ruta, Francesco L.
서명/저자  
Infrared Nanoscopy of Anisotropic and Correlated Quantum Materials
발행사항  
[Sl] : Columbia University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
174 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Basov, Dmitri N.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2024.
초록/해제  
요약Collective phenomena can give quantum materials unusual properties not found in common materials. Electronic correlations are responsible for intriguing emergent effects like superconductivity, metal-to-insulator transitions, magnetism, etc. Also, anisotropic excitations of polar quantum matter can lead to hyperbolicity, when one crystal axis is metallic and another dielectric. Polaritons, half-light half-matter quasiparticles, have exotic properties in hyperbolic media and are influenced by electronic correlations. In this dissertation, we use infrared near-field optical nanoscopy to interrogate various quantum materials both with strong anisotropy and electronic correlations and study their interplay and tunability. We first understand how near-field microscopes read out optical anisotropy (i) and use our theory to study the metal-to-insulator transition in polycrystalline VO2 (ii). Next, we demonstrate extreme tunability of hyperbolic phonon polaritons in α-MoO3 by interfacing graphene (iii). Finally, we introduce two novel hyperbolic systems: CrSBr and MoOCl2, which host magnetically-enhanced hyperbolic exciton polaritons (iv) and ultra-low-loss hyperbolic plasmon polaritons (v), respectively.
일반주제명  
Condensed matter physics
일반주제명  
Optics
일반주제명  
Nanoscience
일반주제명  
Applied physics
일반주제명  
Nanotechnology
키워드  
Electronic correlations
키워드  
Quantum materials
키워드  
Optical anisotropy
키워드  
Hyperbolic media
키워드  
Nanoscopy
기타저자  
Columbia University Applied Physics
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
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■020    ▼a9798896076018
■035    ▼a(MiAaPQ)AAI31632073
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aRuta,  Francesco  L.
■24510▼aInfrared  Nanoscopy  of  Anisotropic  and  Correlated  Quantum  Materials
■260    ▼a[Sl]▼bColumbia  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a174  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Basov,  Dmitri  N.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2024.
■520    ▼aCollective  phenomena  can  give  quantum  materials  unusual  properties  not  found  in  common  materials.  Electronic  correlations  are  responsible  for  intriguing  emergent  effects  like  superconductivity,  metal-to-insulator  transitions,  magnetism,  etc.  Also,  anisotropic  excitations  of  polar  quantum  matter  can  lead  to  hyperbolicity,  when  one  crystal  axis  is  metallic  and  another  dielectric.  Polaritons,  half-light  half-matter  quasiparticles,  have  exotic  properties  in  hyperbolic  media  and  are  influenced  by  electronic  correlations.  In  this  dissertation,  we  use  infrared  near-field  optical  nanoscopy  to  interrogate  various  quantum  materials  both  with  strong  anisotropy  and  electronic  correlations  and  study  their  interplay  and  tunability.  We  first  understand  how  near-field  microscopes  read  out  optical  anisotropy  (i)  and  use  our  theory  to  study  the  metal-to-insulator  transition  in  polycrystalline  VO2  (ii).  Next,  we  demonstrate  extreme  tunability  of  hyperbolic  phonon  polaritons  in  α-MoO3  by  interfacing  graphene  (iii).  Finally,  we  introduce  two  novel  hyperbolic  systems:  CrSBr  and  MoOCl2,  which  host  magnetically-enhanced  hyperbolic  exciton  polaritons  (iv)  and  ultra-low-loss  hyperbolic  plasmon  polaritons  (v),  respectively.
■590    ▼aSchool  code:  0054.
■650  4▼aCondensed  matter  physics
■650  4▼aOptics
■650  4▼aNanoscience
■650  4▼aApplied  physics
■650  4▼aNanotechnology
■653    ▼aElectronic  correlations
■653    ▼aQuantum  materials
■653    ▼aOptical  anisotropy
■653    ▼aHyperbolic  media
■653    ▼aNanoscopy
■690    ▼a0611
■690    ▼a0752
■690    ▼a0565
■690    ▼a0652
■690    ▼a0215
■71020▼aColumbia  University▼bApplied  Physics.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164601▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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