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Infrared Electrodynamics of Dirac Materials
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Infrared Electrodynamics of Dirac Materials. |
| 개인저자 | Shao, Yinming . |
| 단체저자명 | Columbia University. Physics. |
| 발행사항 | [S.l.]: Columbia University., 2020. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2020. |
| 형태사항 | 126 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-05B. Dissertation Abstract International |
| ISBN | 9781392467602 |
| 학위논문주기 | Thesis (Ph.D.)--Columbia University, 2020. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-05, Section: B.
Advisor: Basov, Dmitri N. |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | This dissertation reports on infrared optical spectroscopic studies of a novel class of materials named Dirac materials, which cover a broad range of materials including Topological Insulators (TI) and Dirac/Nodal-line semimetals. These materials share a similar low-energy Hamiltonian that can be described by massless/massive Dirac fermions. Adding out-of-plane magnetic field generates additional features in the optical spectra that allow us to distinguish Dirac fermions with usual fermions with parabolic bands. I will first demonstrate identifications of surface states (SS) of TI using Faraday rotation spectroscopy, where both the top and bottom SS can be identified and found to host carriers of opposite sign. Secondly, I will generalize the power-law behavior for two-dimensional (2D) and three-dimensional (3D) Dirac semimetals to dispersive nodal-line semimetals. This leads to the discoveries of Dirac nodal-lines in topological semimetal NbAs2. Finally,the optical signatures of electronic correlations are discussed and the unexplored overlapping area between strongly correlated systems and Dirac semimetals are studied. The prominent correlation effects in nodal-line semimetal ZrSiSe uncovered by a combinationof optical and magneto-optical spectroscopies will be discussed. |
| 일반주제명 | Condensed matter physics. Applied physics. Quantum physics. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
