Pressure effect on magnetic moments in ordered Ni3Mn anddisordered Ni100-xMnx alloys: ab initio calculation and experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00361327" target="_blank" >RIV/68378271:_____/11:00361327 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/11:10106070

Výsledek na webu

<a href="http://dx.doi.org/10.1080/08957959.2010.529808" target="_blank" >http://dx.doi.org/10.1080/08957959.2010.529808</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/08957959.2010.529808" target="_blank" >10.1080/08957959.2010.529808</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pressure effect on magnetic moments in ordered Ni3Mn anddisordered Ni100-xMnx alloys: ab initio calculation and experiment

Popis výsledku v původním jazyce

We have revealed a substantial difference in the pressure behavior of magnetization of the ordered Ni3Mn and the disordered Ni75Mn25 and Ni80Mn20 alloys in the pressure range up to 1.2 GPa. To explain in detail the peculiarities of magnetic properties ofthe Ni-rich NiMn alloys, the reference electronic structure of the alloys was calculated using the tight-binding linear muffin-tin orbital approach. The effect of disorder was described by the coherent potential approximation. The theoretical ab initiocalculations (with changes of the lattice parameters up to 1%) elucidated the pressure stability of the magnetic Mn moments and revealed that the very pronounced decrease in the magnetization of the disordered alloys under pressure is caused by the relatively small change in portion of the Mn moments with parallel and anti-parallel orientation with respect to the total moment.

Název v anglickém jazyce

Pressure effect on magnetic moments in ordered Ni3Mn anddisordered Ni100-xMnx alloys: ab initio calculation and experiment

Popis výsledku anglicky

We have revealed a substantial difference in the pressure behavior of magnetization of the ordered Ni3Mn and the disordered Ni75Mn25 and Ni80Mn20 alloys in the pressure range up to 1.2 GPa. To explain in detail the peculiarities of magnetic properties ofthe Ni-rich NiMn alloys, the reference electronic structure of the alloys was calculated using the tight-binding linear muffin-tin orbital approach. The effect of disorder was described by the coherent potential approximation. The theoretical ab initiocalculations (with changes of the lattice parameters up to 1%) elucidated the pressure stability of the magnetic Mn moments and revealed that the very pronounced decrease in the magnetization of the disordered alloys under pressure is caused by the relatively small change in portion of the Mn moments with parallel and anti-parallel orientation with respect to the total moment.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F09%2F1027" target="_blank" >GA202/09/1027: Exotické kvantové stavy v intermetalikách s 4f- a 5f-elektrony</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

High Pressure Research

ISSN

0895-7959

e-ISSN

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Svazek periodika

31

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

116-120

Kód UT WoS článku

000288660500024

EID výsledku v databázi Scopus

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