Actions for Optical spectroscopy of the Weyl semimetal TaAs [electronic resource].

Email RIS file
Bookmark
Report an Issue

Optical spectroscopy of the Weyl semimetal TaAs [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 121,110 : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Here, we present a systematic study of both the temperature and frequency dependence of the optical response in TaAs, a material that has recently been realized to host the Weyl semimetal state. Our study reveals that the optical conductivity of TaAs features a narrow Drude response alongside a conspicuous linear dependence on frequency. The weight of the Drude peak decreases upon cooling, following a T2 temperature dependence, in good agreement with theoretical predictions. Two linear components with distinct slopes dominate the low-temperature optical conductivity. A comparison between our experimental results and theoretical calculations suggests that the linear conductivity below ~230 cm–1 arises purely from interband transitions near the Weyl points, providing rich information about the Weyl semimetal state in TaAs.
Report Numbers
E 1.99:la-ur--15-27435
la-ur--15-27435
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/24/2016.
"la-ur--15-27435"
Physical Review B 93 12 ISSN 2469-9950; PRBMDO AM
B. Xu; Y. M. Dai; L. X. Zhao; K. Wang; R. Yang; W. Zhang; J. Y. Liu; H. Xiao; G. F. Chen; A. J. Taylor; D. A. Yarotski; R. P. Prasankumar; X. G. Qiu.
Funding Information
2015CB921303
2015CB921102
2012CB921302
2012CB821403
91121004
91421304
11374345
AC52-06NA25396
View MARC record | catkey: 24058157