Research output: Contribution to journal › Article › peer-review
Magnetic and Electronic Properties of Gd-Doped Topological Insulator Bi1.09Gd0.06Sb0.85Te3. / Filnov, S. O.; Surnin, Yu A.; Koroleva, A. V. et al.
In: Journal of Experimental and Theoretical Physics, Vol. 129, No. 3, 01.09.2019, p. 404-412.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Magnetic and Electronic Properties of Gd-Doped Topological Insulator Bi1.09Gd0.06Sb0.85Te3
AU - Filnov, S. O.
AU - Surnin, Yu A.
AU - Koroleva, A. V.
AU - Klimovskikh, I. I.
AU - Estyunin, D. A.
AU - Varykhalov, A. Yu
AU - Bokai, K. A.
AU - Kokh, K. A.
AU - Tereshchenko, O. E.
AU - Golyashov, V. A.
AU - Shevchenko, E. V.
AU - Shikin, A. M.
N1 - Publisher Copyright: © 2019, Pleiades Publishing, Inc.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - The recent realization of quantum anomalous Hall effect and Majorana fermions observation enhance interest in magnetism investigation in topological insulators. In this work, the electronic and magnetic structure of the Gd-doped topological insulator Bi1.09Gd0.06Sb0.85Te3 were systematically studied by means of angle-resolved photoemission spectroscopy, resonance photoemission spectroscopy (ResPES) and SQUID magnetometry. Resonant features related to the Gd density of states near the Fermi level are experimentally observed. Study of magnetic structure showed antiferromagnetic ordered bulk at low temperatures as well as presence of hysteresis loop at elevated temperatures. Finally, possible mechanism of magnetism and its relation to observed electronic features are discussed.
AB - The recent realization of quantum anomalous Hall effect and Majorana fermions observation enhance interest in magnetism investigation in topological insulators. In this work, the electronic and magnetic structure of the Gd-doped topological insulator Bi1.09Gd0.06Sb0.85Te3 were systematically studied by means of angle-resolved photoemission spectroscopy, resonance photoemission spectroscopy (ResPES) and SQUID magnetometry. Resonant features related to the Gd density of states near the Fermi level are experimentally observed. Study of magnetic structure showed antiferromagnetic ordered bulk at low temperatures as well as presence of hysteresis loop at elevated temperatures. Finally, possible mechanism of magnetism and its relation to observed electronic features are discussed.
UR - http://www.scopus.com/inward/record.url?scp=85073697204&partnerID=8YFLogxK
U2 - 10.1134/S106377611908003X
DO - 10.1134/S106377611908003X
M3 - Article
AN - SCOPUS:85073697204
VL - 129
SP - 404
EP - 412
JO - Journal of Experimental and Theoretical Physics
JF - Journal of Experimental and Theoretical Physics
SN - 1063-7761
IS - 3
ER -
ID: 21939169