| MIROSHKINA, Olga N., Benedikt EGGERT, Johanna LILL, Benedikt BECKMANN, David KOCH, Michael Y. HU, Tobias LOJEWSKI, Simon RAULS, Franziska SCHEIBEL, Andreas TAUBEL, Mojmír ŠOB, Katharina OLLEFS, Oliver GUTFLEISCH, Heiko WENDE, Markus E. GRUNER a Martin FRIAK. Impact of magnetic and antisite disorder on the vibrational densities of states in Ni2MnSn Heusler alloys. Physical Review B. The American Physical Society, 2022, roč. 106, č. 21, s. 1-13. ISSN 2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.106.214302. |
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@article{2247309,
author = {Miroshkina, Olga N. and Eggert, Benedikt and Lill, Johanna and Beckmann, Benedikt and Koch, David and Hu, Michael Y. and Lojewski, Tobias and Rauls, Simon and Scheibel, Franziska and Taubel, Andreas and Šob, Mojmír and Ollefs, Katharina and Gutfleisch, Oliver and Wende, Heiko and Gruner, Markus E. and Friak, Martin},
article_number = {21},
doi = {http://dx.doi.org/10.1103/PhysRevB.106.214302},
keywords = {Lattice dynamics; Magnetic order; Structural properties; Heusler alloy; Density functional theory; Inelastic X-ray scattering; Mössbauer spectroscopy},
language = {eng},
issn = {2469-9950},
journal = {Physical Review B},
title = {Impact of magnetic and antisite disorder on the vibrational densities of states in Ni2MnSn Heusler alloys},
url = {https://doi.org/10.1103/PhysRevB.106.214302},
volume = {106},
year = {2022}
}
TY - JOUR
ID - 2247309
AU - Miroshkina, Olga N. - Eggert, Benedikt - Lill, Johanna - Beckmann, Benedikt - Koch, David - Hu, Michael Y. - Lojewski, Tobias - Rauls, Simon - Scheibel, Franziska - Taubel, Andreas - Šob, Mojmír - Ollefs, Katharina - Gutfleisch, Oliver - Wende, Heiko - Gruner, Markus E. - Friak, Martin
PY - 2022
TI - Impact of magnetic and antisite disorder on the vibrational densities of states in Ni2MnSn Heusler alloys
JF - Physical Review B
VL - 106
IS - 21
SP - 1-13
EP - 1-13
PB - The American Physical Society
SN - 24699950
KW - Lattice dynamics
KW - Magnetic order
KW - Structural properties
KW - Heusler alloy
KW - Density functional theory
KW - Inelastic X-ray scattering
KW - Mössbauer spectroscopy
UR - https://doi.org/10.1103/PhysRevB.106.214302
N2 - We have performed a combined experimental and theoretical investigation of the vibrational properties of Ni2MnSn Heusler alloys. Sn-partial vibrational density of states (VDOS) of Sn119 was measured by nuclear resonant inelastic x-ray scattering at temperatures of 15 and 300 K, while magnetism and local environment of Sn was resolved by Sn119 Mössbauer spectroscopy. Using density functional theory, we associate the peaks in the VDOS with particular features in the element-resolved phonon dispersion of L21 ordered Ni2MnSn. The good agreement between theory and experiment in the low-energy region provides the evidence that the inversion of optical modes at Γ involving the displacement of Ni and the heavier main group element atoms, which was predicted previously for other Ni-Mn-based Heusler compounds, is also a characteristic property of Ni2MnSn. Introducing different types of magnetic and antisite disorder in our calculations results in a distinctive redistribution and broadening of the Sn-VDOS, suggesting that considering partial disorder further improves the agreement with the experiment in particular at the highest phonon energies.
ER -
MIROSHKINA, Olga N., Benedikt EGGERT, Johanna LILL, Benedikt BECKMANN, David KOCH, Michael Y. HU, Tobias LOJEWSKI, Simon RAULS, Franziska SCHEIBEL, Andreas TAUBEL, Mojmír ŠOB, Katharina OLLEFS, Oliver GUTFLEISCH, Heiko WENDE, Markus E. GRUNER a Martin FRIAK. Impact of magnetic and antisite disorder on the vibrational densities of states in Ni2MnSn Heusler alloys. \textit{Physical Review B}. The American Physical Society, 2022, roč.~106, č.~21, s.~1-13. ISSN~2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.106.214302.
|
