Email this article Magnetic Properties of Iron-Doped Bi2Se3, a Topological Insulator
- Authors: Shevchenko E.V.1, Khachatryan A.S.1, Antonenko A.O.1, Charnaya E.V.1, Naumov S.V.2, Marchenkov V.V.2,3, Chistyakov V.V.2, Lee M.K.4, Chang L.4
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Affiliations:
- St. Petersburg State University
- Mekheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Ural Federal University Named after the First President of Russia B.N. Yeltsin
- National Cheng Kung University
- Issue: Vol 61, No 6 (2019)
- Pages: 1037-1042
- Section: Magnetism
- URL: https://ogarev-online.ru/1063-7834/article/view/205755
- DOI: https://doi.org/10.1134/S1063783419060234
- ID: 205755
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Abstract
We study the dc magnetization of a Bi1.94Fe0.06Se3 single crystal in the temperature range of 1.9 to 400 K in applied magnetic fields up to 70 kOe for two sample orientations in the applied field. We register three magnetic phase transitions and observe considerable anisotropy of the magnetic properties. The coercive force varies with temperature in a nonmonotonic manner. For the sample in a paramagnetic state, we estimate its magnetic moment per iron atom; its Curie–Weiss temperature is found to be negative. Arrot–Belov plots are constructed.
About the authors
E. V. Shevchenko
St. Petersburg State University
Email: charnaya@mail.ru
Russian Federation, St. Petersburg
A. Sh. Khachatryan
St. Petersburg State University
Email: charnaya@mail.ru
Russian Federation, St. Petersburg
A. O. Antonenko
St. Petersburg State University
Email: charnaya@mail.ru
Russian Federation, St. Petersburg
E. V. Charnaya
St. Petersburg State University
Author for correspondence.
Email: charnaya@mail.ru
Russian Federation, St. Petersburg
S. V. Naumov
Mekheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: charnaya@mail.ru
Russian Federation, Yekaterinburg
V. V. Marchenkov
Mekheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Email: charnaya@mail.ru
Russian Federation, Yekaterinburg; Yekaterinburg
V. V. Chistyakov
Mekheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: charnaya@mail.ru
Russian Federation, Yekaterinburg
M. K. Lee
National Cheng Kung University
Email: charnaya@mail.ru
Taiwan, Province of China, Tainan
L.-J. Chang
National Cheng Kung University
Email: charnaya@mail.ru
Taiwan, Province of China, Tainan
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