Pressure-Induced Increase of the Total Magnetic Moment in Ferrimagnetic Ni1.9375Mn1.5625Sn0.5 Martensite: A Quantum-Mechanical Study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00556885" target="_blank" >RIV/68081723:_____/22:00556885 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/22:00556885 RIV/00216224:14310/22:00125503

Result on the web

<a href="https://www.jstage.jst.go.jp/article/matertrans/63/4/63_MT-MA2022006/_article" target="_blank" >https://www.jstage.jst.go.jp/article/matertrans/63/4/63_MT-MA2022006/_article</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2320/matertrans.MT-MA2022006" target="_blank" >10.2320/matertrans.MT-MA2022006</a>

Result language

angličtina

Original language name

Pressure-Induced Increase of the Total Magnetic Moment in Ferrimagnetic Ni1.9375Mn1.5625Sn0.5 Martensite: A Quantum-Mechanical Study

Original language description

We have performed an ab initio study of disordered ferrimagnetic Ni1.9375Mn1.5625Sn0.5 martensite. Employing the supercell approach combined with the special quasi-random structure concept for modeling of disordered states we have determined thermodynamic, magnetic, structural, elastic and vibrational properties of the studied material. Its atomic and magnetic configuration is found to exhibit a pressure-induced increase of the total magnetic moment, i.e. the total magnetic moment increases with decreasing volume. This peculiar trend is revealed despite of the fact that the magnitudes of local magnetic moments of atoms decrease (or stay constant) with decreasing volume. The origin of the identified phenomena may be related to (i) the ferrimagnetic nature of the magnetic state when the parallel and antiparallel magnetic moments nearly compensate each other and (ii) chemical disorder that leads to different local atomic environments and, consequently, also to different local magnetic moments and their different response to hydrostatic pressures (the antiparallel moments are more sensitive). The studied state is mechanically and dynamically stable (no imaginary-frequency phonons) but, regarding its thermodynamic stability, it is an excited state.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials Transactions

ISSN

1345-9678

e-ISSN

1347-5320

Volume of the periodical

63

Issue of the periodical within the volume

4

Country of publishing house

JP - JAPAN

Number of pages

6

Pages from-to

430-435

UT code for WoS article

000754360400001

EID of the result in the Scopus database

2-s2.0-85127249693