東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Imaging Quantum Hall Wavefunctions w...

Randeria, Mallika.

FindBook

Google Book

Amazon

博客來

Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes./
作者:	Randeria, Mallika.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	176 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Contained By:	Dissertations Abstracts International81-04B.
標題:	Condensed matter physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13886504
ISBN:	9781085649797

Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes.
Randeria, Mallika.

Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 176 p.

Source: Dissertations Abstracts International, Volume: 81-04, Section: B.

Thesis (Ph.D.)--Princeton University, 2019.

This item must not be sold to any third party vendors.

Quantum materials provide a rich platform for realizing emergent phenomena, where interactions between electrons lead to properties that are strikingly different from those of individual electrons. Confining electrons to two dimensions and subjecting them to large magnetic fields enhances the effects of Coulomb interactions, which can manifest as a spontaneous lifting of spin, valley or other degeneracies in these quantum Hall systems. Experiments on a number of materials have primarily relied on global measurement techniques to explore this phase space, but locally imaging these broken-symmetry states has remained a challenge. With the useof a scanning tunneling microscope (STM), we directly visualize quantum Hall wavefunctions on the surface of a bismuth crystal, which enables us to probe the spatial signatures of spontaneous valley ordering. We identify the emergence of a nematic electronic phase, which breaks the rotational symmetry of the underlying crystal lattice, and a ferroelectric phase that carries an in-plane electric dipolemoment. Furthermore, we use the STM to investigate one-dimensional channels that form at the boundary between different valley-polarized quantum Hall states. We find markedly different regimes where these channels are either metallic or insulating, depending on constraints imposed on electron-electron interactions by the valley flavor. These experiments set the stage visualizing fractional quasiparticles in quantum Hall systems, and more generally for using local imaging techniques in future explorations of novel interaction-driven phenomena.

ISBN: 9781085649797Subjects--Topical Terms:

3173567
Condensed matter physics.
Subjects--Index Terms:

Bismuth

Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes.
LDR:02815nmm a2200373 4500 001 2272581
005 20201105110128.5
008 220629s2019 ||||||||||||||||| ||eng d
020 $a 9781085649797
035 $a (MiAaPQ)AAI13886504
035 $a AAI13886504
040 $a MiAaPQ $c MiAaPQ
100 1 $a Randeria, Mallika. $3 3550012
245 1 0 $a Imaging Quantum Hall Wavefunctions with a Scanning Tunneling Microscope: From Spontaneous Symmetry Breaking to Interacting Domain Boundary Modes.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 176 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 $a Advisor: Yazdani, Ali.
502 $a Thesis (Ph.D.)--Princeton University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a Quantum materials provide a rich platform for realizing emergent phenomena, where interactions between electrons lead to properties that are strikingly different from those of individual electrons. Confining electrons to two dimensions and subjecting them to large magnetic fields enhances the effects of Coulomb interactions, which can manifest as a spontaneous lifting of spin, valley or other degeneracies in these quantum Hall systems. Experiments on a number of materials have primarily relied on global measurement techniques to explore this phase space, but locally imaging these broken-symmetry states has remained a challenge. With the useof a scanning tunneling microscope (STM), we directly visualize quantum Hall wavefunctions on the surface of a bismuth crystal, which enables us to probe the spatial signatures of spontaneous valley ordering. We identify the emergence of a nematic electronic phase, which breaks the rotational symmetry of the underlying crystal lattice, and a ferroelectric phase that carries an in-plane electric dipolemoment. Furthermore, we use the STM to investigate one-dimensional channels that form at the boundary between different valley-polarized quantum Hall states. We find markedly different regimes where these channels are either metallic or insulating, depending on constraints imposed on electron-electron interactions by the valley flavor. These experiments set the stage visualizing fractional quasiparticles in quantum Hall systems, and more generally for using local imaging techniques in future explorations of novel interaction-driven phenomena.
590 $a School code: 0181.
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Quantum physics. $3 726746
650 4 $a Low temperature physics. $3 3173917
653 $a Bismuth
653 $a Landau levels
653 $a Nematic
653 $a Quantum hall
653 $a Scanning tunneling microscope
690 $a 0611
690 $a 0599
690 $a 0598
710 2 $a Princeton University. $b Physics. $3 2101570
773 0 $t Dissertations Abstracts International $g 81-04B.
790 $a 0181
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13886504