Detailed Information on Publication Record
2022
The impact of disorder on the 4O-martensite of Ni-Mn-Sn Heusler alloy
FRIÁK, Martin, Martin ZELENÝ, Martina MAZALOVÁ, Ivana MIHÁLIKOVÁ, Ilja TUREK et. al.Basic information
Original name
The impact of disorder on the 4O-martensite of Ni-Mn-Sn Heusler alloy
Authors
FRIÁK, Martin, Martin ZELENÝ, Martina MAZALOVÁ (203 Czech Republic, belonging to the institution), Ivana MIHÁLIKOVÁ (703 Slovakia, belonging to the institution), Ilja TUREK, Jiří KAŠTIL, Jiří KAMARÁD, Martin MÍŠEK, Zdeněk ARNOLD, Oldřich SCHNEEWEISS and Mojmír ŠOB (203 Czech Republic, belonging to the institution)
Edition
Intermetallics, Oxford, Elsevier Science, 2022, 0966-9795
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10403 Physical chemistry
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.400
RIV identification code
RIV/00216224:14310/22:00127030
Organization unit
Faculty of Science
UT WoS
000856093100002
Keywords in English
Ni-Mn-Sn; martensite; modulation; magnetism; ab initio; phonons; elasticity PACS; 63.50.+x; 75.50.Gg; 64.30.Ef; 62.20.Dc
Tags
Tags
International impact, Reviewed
Změněno: 26/10/2022 14:47, Mgr. Marie Šípková, DiS.
Abstract
V originále
We have performed a quantum-mechanical study of thermodynamic, elastic, magnetic and structural properties of four different ferrimagnetic states in Ni1.9375Mn1.5625Sn0.5 martensite. They are modeled by the four-layer modulated 4O structures with Mn-excess atoms randomly distributed in Ni and Sn sublattices. The Mn atoms at the Ni sublattice turn out to be decisive for both thermodynamic and magnetic properties. A reversal of the orientation of their local magnetic moments has a huge impact on the properties of the whole system. The lowest-energy configuration exhibits anti-parallel local magnetic moments of these Mn atoms with respect to the orientation of the total magnetic moment. By testing both elastic properties and phonon modes we conclude that the lowest-energy state is mechanically stable. Vibrational properties of individual atoms are found to be very sensitive to the chemical disorder.
Links
LM2018140, research and development project |
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