Short-range and long-range magnetic order in Fe(Te1.5Se0.5) O5Cl

authored by: E. S. Kozlyakova, K. N. Denisova, A. A. Eliseev, A. V. Moskin, A. Y. Akhrorov, P. S. Berdonosov, V. A. Dolgikh, B. Rahaman, S. Das, T. Saha-Dasgupta, P. Lemmens, A. N. Vasiliev, O. S. Volkova
Abstract: Considerable attention has been paid recently to FeTe2O5Cl due to reduced dimensionality and frustration in the magnetic subsystem, succession of phase transitions, and multiferroicity. The efforts to grow its selenite sibling resulted in the mixed halide compound Fe(Te1.5Se0.5)O5Cl, which was found crystallizing in a different structural type and possessing properties drastically different from those of a parent system. Its magnetic subsystem features weakly coupled Fe3+-Fe3+ dimers showing the regime of short-range correlations at TM∼70K and long-range order at TN=22K. In a magnetically ordered state, sizable spin-orbital interactions lead to a small canting of Fe3+ moments. Magnetic dipole-dipole interactions contribute significantly to the experimentally observed orientation of magnetization easy axis in the ac plane. The first principles calculations of leading exchange interactions were found in agreement with measurements of thermodynamic properties and Raman spectroscopy.
External Organisation(s): Lomonosov Moscow State University
National University of Science and Technology MISIS
Technische Universität Braunschweig
Aliah University
S N Bose National Centre for Basic Science
South Ural State University
Ural Federal University (UrFU)
Type: Article
Journal: Physical Review B
Volume: 102
ISSN: 2469-9950
Publication date: 03.12.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Electronic version(s): https://doi.org/10.1103/physrevb.102.214405 (Access: Closed)

BibTeX

@article{3f0bc14074b34e1b92fdcde6df4b5805,
title = "Short-range and long-range magnetic order in Fe(Te1.5Se0.5) O5Cl",
abstract = "Considerable attention has been paid recently to FeTe2O5Cl due to reduced dimensionality and frustration in the magnetic subsystem, succession of phase transitions, and multiferroicity. The efforts to grow its selenite sibling resulted in the mixed halide compound Fe(Te1.5Se0.5)O5Cl, which was found crystallizing in a different structural type and possessing properties drastically different from those of a parent system. Its magnetic subsystem features weakly coupled Fe3+-Fe3+ dimers showing the regime of short-range correlations at TM∼70K and long-range order at TN=22K. In a magnetically ordered state, sizable spin-orbital interactions lead to a small canting of Fe3+ moments. Magnetic dipole-dipole interactions contribute significantly to the experimentally observed orientation of magnetization easy axis in the ac plane. The first principles calculations of leading exchange interactions were found in agreement with measurements of thermodynamic properties and Raman spectroscopy.",
author = "Kozlyakova, {E. S.} and Denisova, {K. N.} and Eliseev, {A. A.} and Moskin, {A. V.} and Akhrorov, {A. Y.} and Berdonosov, {P. S.} and Dolgikh, {V. A.} and B. Rahaman and S. Das and T. Saha-Dasgupta and P. Lemmens and Vasiliev, {A. N.} and Volkova, {O. S.}",
note = "Funding Information: This work has been supported by Russian Science Foundation Grant No. 19-42-02010 and by National University of Science and Technology “MISiS” Grant No. K2-2020-008. It was supported also by Act 211 of the Government of Russian Federation, Contracts No. 02.A03.21.0004, No. 02.A03.21.0006, and No. 02.A03.21.0011. P.L. acknowledges support by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) DFG LE967/16-1 and DFG EXC-2123 QuantumFrontiers 390837967.",
year = "2020",
month = dec,
day = "3",
doi = "10.1103/physrevb.102.214405",
language = "English",
volume = "102",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Institute of Physics",
number = "21",
}