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Title: Vector optical activity in the Weyl semimetal TaAs

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)

Here, it is shown that the Weyl semimetal TaAs can have a significant polar vector contribution to its optical activity. This is quantified by ab initio calculations of the resonant x-ray diffraction at the Ta L1 edge. For the Bragg vector (400), this polar vector contribution to the circular intensity differential between left and right polarized x-rays is predicted to be comparable to that arising from linear dichroism. Implications this result has in regards to optical effects predicted for topological Weyl semimetals are discussed.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Materials Sciences and Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352821
Alternate ID(s):
OSTI ID: 1234006
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 24; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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Cited By (2)

Experimental progress on layered topological semimetals journal April 2019
Experimental Progress on Layered Topological Semimetals text January 2019

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