Universität zu Köln

Haubold, E., Koepernik, K., Efremov, D., Khim, S., Fedorov, A., Kushnirenko, Y., van den Brink, J., Wurmehl, S., Buechner, B., Kim, T. K., Hoesch, M., Sumida, K., Taguchi, K., Yoshikawa, T., Kimura, A., Okuda, T. and Borisenko, S. V. (2017). Experimental realization of type-II Weyl state in noncentrosymmetric TaIrTe4. Phys. Rev. B, 95 (24). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

We present experimental evidence for a type-II noncentrosymmetric Weyl state in TaIrTe4 where it has been recently predicted theoretically. We find direct correspondence between angle-resolved photoemission spectroscopy data and calculated electronic structure both in the bulk and the surface, and clearly observe the exotic surface states which support the quasi-one-dimensional Fermi arcs connecting only four Weyl points. Remarkably, these electronic states are spin polarized in the direction along the arcs, thus highlighting TaIrTe4 as an interesting type-II Weyl semimetal with a promising application potential.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Haubold, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Koepernik, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Efremov, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Khim, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fedorov, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kushnirenko, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED van den Brink, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wurmehl, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buechner, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kim, T. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hoesch, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sumida, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Taguchi, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yoshikawa, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kimura, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Okuda, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Borisenko, S. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-227834
DOI:	10.1103/PhysRevB.95.241108
Journal or Publication Title:	Phys. Rev. B
Volume:	95
Number:	24
Date:	2017
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SEMIMETAL PHASE Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22783