Effect of magnetic ordering on the stability of Ni–Mn–Ga(–Co–Cu) alloys along the tetragonal deformation path

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00481170" target="_blank" >RIV/68378271:_____/17:00481170 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10370898 RIV/00216305:26210/17:PU125151

Result on the web

<a href="http://dx.doi.org/10.1109/TMAG.2017.2707527" target="_blank" >http://dx.doi.org/10.1109/TMAG.2017.2707527</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2017.2707527" target="_blank" >10.1109/TMAG.2017.2707527</a>

Result language

angličtina

Original language name

Effect of magnetic ordering on the stability of Ni–Mn–Ga(–Co–Cu) alloys along the tetragonal deformation path

Original language description

The influence of magnetic ordering on the stability of Ni–Mn–Ga(–Co–Cu) Heusler alloys is investigated using the first-principles exact muffin-tin orbital method in combination with the coherent-potential approximation. The paramagnetic (PM) state is described by disordered local moment approach. In stoichiometric Ni2MnGa alloy, the total energy profile along the tetragonal deformation path differs between ferromagnetic (FM) ground state and PM state with high energy, where cubic structure of austenite exhibits lower total energy than tetragonally distorted structure of martensite. Martensitic structure is stabilized in ground state by FM interaction. In PM state it can be stabilized by partial substitution of Ni by Co or by partial substitution of Mn/Ga by Cu. Energy difference between PM and FM state EPM-FM can be used for qualitative estimation of Curie temperature TC.n

Czech name

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Czech description

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Type

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

CEP classification

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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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

IEEE Transactions on Magnetics

ISSN

0018-9464

e-ISSN

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Volume of the periodical

53

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

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UT code for WoS article

000413981300024

EID of the result in the Scopus database

2-s2.0-85032920625