Temperature Studies of Raman Spectra in MnBi 2 Te 4  and MnSb 2 Te 4  Magnetic Topological Insulators

A. A. Maksimov; Максимов А. А.; I. I. Tartakovskiy; Тартаковский И. И.; Z. S. Aliev; Алиев З. С.; I. R. Amiraslanov; Амирасланов И. Р.; N. A. Abdullaev; Абдуллаев Н. А.; V. N. Zverev; Зверев В. Н.; Z. A. Dzhakhangirli; Джахангирли З. А.; I. Yu. Sklyadneva; Скляднева И. Ю.; M. M. Otrokov; Отроков М. М.

doi:10.31857/S1234567823170093

Temperature Studies of Raman Spectra in MnBi₂Te₄ and MnSb₂Te₄ Magnetic Topological Insulators

作者: Maksimov A.A.¹, Tartakovskiy I.I.¹, Aliev Z.S.², Amiraslanov I.R.²^,3, Abdullaev N.A.²^,3, Zverev V.N.¹, Dzhakhangirli Z.A.²^,3, Sklyadneva I.Y.⁴, Otrokov M.M.⁵^,6
隶属关系:
1. Institute of Solid State Physics, Russian Academy of Sciences
2. Baku State University
3. Institute of Physics, Azerbaijan National Academy of Sciences
4. Tomsk State University
5. Centro de Fisica de Materiales (CFM-MPC)
6. IKERBASQUE, Basque Foundation for Science
期: 卷 118, 编号 5-6 (9) (2023)
页面: 361-366
栏目: Articles
URL: https://vestnik.nvsu.ru/0370-274X/article/view/663075
DOI: https://doi.org/10.31857/S1234567823170093
EDN: https://elibrary.ru/KAMHUN
ID: 663075

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Raman spectra of magnetic topological crystalline insulators in a wide temperature range including the magnetic ordering region are studied in detail. The anharmonicity parameters and Grüneisen mode parameters of Raman-active phonons in the studied crystals have been determined. It has been shown that the temperature dependence of the frequency of the $A_{1g}^{(1)}$ (~48 cm^–1) phonon in MnBi₂Te₄ coincides within ±0.1 cm^–1 with the standard anharmonic model disregarding the spin–phonon coupling. The polarization dependences of Raman spectra in the MnSb₂Te₄ crystals indicate that Sb and Mn atoms are strongly mixed in them unlike the isostructural MnBi₂Te₄ crystals.

参考

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卷 120, 编号 11-12 (2024)

Temperature Studies of Raman Spectra in MnBi₂Te₄ and MnSb₂Te₄ Magnetic Topological Insulators

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A. Maksimov

I. Tartakovskiy

Z. Aliev

I. Amiraslanov

N. Abdullaev

V. Zverev

Z. Dzhakhangirli

I. Sklyadneva

M. Otrokov

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Temperature Studies of Raman Spectra in MnBi2Te4 and MnSb2Te4 Magnetic Topological Insulators

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Temperature Studies of Raman Spectra in MnBi₂Te₄ and MnSb₂Te₄ Magnetic Topological Insulators