Origin of the Electron-Phonon Interaction of Topological Semimetal Surfaces Measured with Helium Atom Scattering

被引：31

作者：

Benedek, Giorgio ^{[1
,4
]}

Miret-Artes, Salvador ^{[1
,2
]}

Manson, J. R. ^{[1
,5
]}

Ruckhofer, Adrian ^{[3
]}

Ernst, Wolfgang E. ^{[3
]}

Tamtoegl, Anton ^{[3
]}

机构：

[1] DIPC, Paseo Manuel de Lardizabal 4, Donostia San Sebastian 20018, Spain

[2] CSIC, Inst Fis Fundamental, Serrano 123, Madrid 28006, Spain

[3] Graz Univ Technol, Inst Expt Phys, A-8010 Graz, Austria

[4] Univ Milano Bicocca, Dipartimento Sci Mat, Via Cozzi 53, I-20125 Milan, Italy

[5] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2020年 / 11卷 / 05期

基金：

奥地利科学基金会;

关键词：

INVERSION-LAYERS; COUPLING-CONSTANT; TRANSITION; TRANSPORT; DYNAMICS; BISMUTH;

D O I：

10.1021/acs.jpclett.9b03829

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

He atom scattering has been demonstrated to be a sensitive probe of the electron-phonon interaction parameter lambda at metal and metal-overlayer surfaces. Here it is shown that the theory linking lambda to the thermal attenuation of atom scattering spectra (the Debye-Waller factor) can be applied to topological semimetal surfaces, such as the quasi-one-dimensional charge-density-wave system Bi(114) and the layered pnictogen chalcogenides. The electron phonon coupling, as determined for several topological insulators belonging to the class of bismuth chalcogenides, suggests a dominant contribution of the surface quantum well states over the Dirac electrons in terms of lambda.

引用

页码：1927 / +

页数：13

共 60 条

[31] ELECTRONIC-STRUCTURE OF INVERSION LAYERS IN MANY-VALLEY SEMICONDUCTORS [J].