Details
| Original language | English |
|---|---|
| Article number | 214405 |
| Journal | Physical Review B |
| Volume | 102 |
| Issue number | 21 |
| Publication status | Published - 3 Dec 2020 |
| Externally published | Yes |
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.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B, Vol. 102, No. 21, 214405, 03.12.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Short-range and long-range magnetic order in Fe(Te1.5Se0.5) O5Cl
AU - Kozlyakova, E. S.
AU - Denisova, K. N.
AU - Eliseev, A. A.
AU - Moskin, A. V.
AU - Akhrorov, A. Y.
AU - Berdonosov, P. S.
AU - Dolgikh, V. A.
AU - Rahaman, B.
AU - Das, S.
AU - Saha-Dasgupta, T.
AU - Lemmens, P.
AU - Vasiliev, A. N.
AU - Volkova, O. S.
N1 - 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.
PY - 2020/12/3
Y1 - 2020/12/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85097582009&partnerID=8YFLogxK
U2 - 10.1103/physrevb.102.214405
DO - 10.1103/physrevb.102.214405
M3 - Article
AN - SCOPUS:85097582009
VL - 102
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 21
M1 - 214405
ER -