Semiconducting Electronic Structure of the Ferromagnetic Spinel HgCr2Se4 Revealed by Soft-X-Ray Angle-Resolved Photoemission Spectroscopy | Sciact - CRIS-system of Boreskov Institute of Catalysis

Semiconducting Electronic Structure of the Ferromagnetic Spinel HgCr2Se4 Revealed by Soft-X-Ray Angle-Resolved Photoemission Spectroscopy Full article

Journal

Physical Review Letters
ISSN: 0031-9007 , E-ISSN: 1079-7114

Output data

Year: 2023, Volume: 130, Number: 18, Article number : 186402, Pages count : 6 DOI: 10.1103/physrevlett.130.186402

Authors

Tanaka Hiroaki ¹ , Telegin Andrei V. ² , Sukhorukov Yurii P. ² , Golyashov Vladimir A. ^3,4 , Tereshchenko Oleg E. ^3,4 , Lavrov Alexander N. ⁵ , Matsuda Takuya ¹ , Matsunaga Ryusuke ¹ , Akashi Ryosuke ⁶ , Lippmaa Mikk ¹ , Arai Yutaro ¹ , Ideta Shinichiro ⁷ , Tanaka Kiyohisa ⁷ , Kondo Takeshi ^1,8 , Kuroda Kenta ^9,10

Affiliations

1	Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
2	M.N. Mikheev Institute of Metal Physics, UB RAS, Ekaterinburg 620108, Russia
3	Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia
4	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, SB RAS, Kol’tsovo 630559, Russia
5	Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia
6	Quantum Materials and Applications Research Center, National Institutes for Quantum Science and Technology, Meguro-ku, Tokyo 152-0033, Japan
7	UVSOR Facility, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
8	Trans-scale Quantum Science Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
9	Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-hiroshima, Hiroshima 739-8526, Japan
10	International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM2), Hiroshima University, Higashi-hiroshima, Hiroshima 739-8526, Japan

We study the electronic structure of the ferromagnetic spinel HgCr2Se4 by soft-x-ray angle-resolved photoemission spectroscopy (SX-ARPES) and first-principles calculations. While a theoretical study has predicted that this material is a magnetic Weyl semimetal, SX-ARPES measurements give direct evidence for a semiconducting state in the ferromagnetic phase. Band calculations based on the density functional theory with hybrid functionals reproduce the experimentally determined band gap value, and the calculated band dispersion matches well with ARPES experiments. We conclude that the theoretical prediction of a Weyl semimetal state in HgCr2Se4 underestimates the band gap, and this material is a ferromagnetic semiconductor.

Tanaka H. , Telegin A.V. , Sukhorukov Y.P. , Golyashov V.A. , Tereshchenko O.E. , Lavrov A.N. , Matsuda T. , Matsunaga R. , Akashi R. , Lippmaa M. , Arai Y. , Ideta S. , Tanaka K. , Kondo T. , Kuroda K.
Semiconducting Electronic Structure of the Ferromagnetic Spinel HgCr2Se4 Revealed by Soft-X-Ray Angle-Resolved Photoemission Spectroscopy
Physical Review Letters. 2023. V.130. N18. 186402 :1-6. DOI: 10.1103/physrevlett.130.186402 WOS Scopus ANCAN PMID OpenAlex

Submitted:	Nov 28, 2022
Accepted:	Mar 22, 2023
Published print:	May 1, 2023
Published online:	May 1, 2023

Web of science:	WOS:000986445800006
Scopus:	2-s2.0-85158883422
Chemical Abstracts:	2023:1048368
Chemical Abstracts (print):	183:71671
PMID:	37204880
OpenAlex:	W4367609257

DB	Citing
Web of science	1
Scopus	2