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Discovery of Novel Dirac and Weyl Fe...

Alidoust, Nasser.

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Discovery of Novel Dirac and Weyl Fermion Materials.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Discovery of Novel Dirac and Weyl Fermion Materials./
Author:	Alidoust, Nasser.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	142 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-06(E), Section: B.
Contained By:	Dissertation Abstracts International78-06B(E).
Subject:	Physics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10242741
ISBN:	9781369557015

Discovery of Novel Dirac and Weyl Fermion Materials.
Alidoust, Nasser.

Discovery of Novel Dirac and Weyl Fermion Materials. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 142 p.

Source: Dissertation Abstracts International, Volume: 78-06(E), Section: B.

Thesis (Ph.D.)--Princeton University, 2017.

In this dissertation, we present the experimental discovery of a new topological phase of matter, the Weyl semimetal state, in the monoarsenides TaAs and NbAs. Furthermore, we study various material systems with strong electron interactions, and provide compelling evidence for the existence of robust surface states in samarium hexaboride SmB6, as well as identify a Z2 topological insulator state with intriguing Dirac fermions in the low-carrier strongly-correlated cerium monopnictides CeBi and CeSb. We also investigate the honeycomb iridate Na2IrO3 and uncover linearly dispersing metallic states on its surface. Finally, we image the spin-orbit split valence band and the deposited quantum well states of the monolayer and bulk transition metal dichalcogenides MoS2 and MoSe2.

ISBN: 9781369557015Subjects--Topical Terms:

516296
Physics.

Discovery of Novel Dirac and Weyl Fermion Materials.
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100 1 $a Alidoust, Nasser. $3 3284534
245 1 0 $a Discovery of Novel Dirac and Weyl Fermion Materials.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 142 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-06(E), Section: B.
500 $a Adviser: M. Zahid Hasan.
502 $a Thesis (Ph.D.)--Princeton University, 2017.
520 $a In this dissertation, we present the experimental discovery of a new topological phase of matter, the Weyl semimetal state, in the monoarsenides TaAs and NbAs. Furthermore, we study various material systems with strong electron interactions, and provide compelling evidence for the existence of robust surface states in samarium hexaboride SmB6, as well as identify a Z2 topological insulator state with intriguing Dirac fermions in the low-carrier strongly-correlated cerium monopnictides CeBi and CeSb. We also investigate the honeycomb iridate Na2IrO3 and uncover linearly dispersing metallic states on its surface. Finally, we image the spin-orbit split valence band and the deposited quantum well states of the monolayer and bulk transition metal dichalcogenides MoS2 and MoSe2.
520 $a The measurements presented in this dissertation constitute the first realization of emergent Weyl fermions in nature, introduce various directions for future discoveries of topological phases in strongly-correlated materials, and shed light on the spin-orbit physics of two-dimensional atomic crystals. These findings expand the field of topological phases of matter to gapless semimetallic and strongly-correlated materials, and offer great promises for further technological applications of topological materials in diverse platforms such as fault-tolerant qubits and low-power electronic and spintronic devices.
590 $a School code: 0181.
650 4 $a Physics. $3 516296
650 4 $a Condensed matter physics. $3 3173567
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10242741