The impact of disorder on the 4O-martensite of Ni–Mn–Sn Heusler alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00561261" target="_blank" >RIV/68081723:_____/22:00561261 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/22:00561261 RIV/00216305:26210/22:PU145779 RIV/00216208:11320/22:10450921 RIV/00216224:14310/22:00127030

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0966979522002497?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0966979522002497?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.intermet.2022.107708" target="_blank" >10.1016/j.intermet.2022.107708</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The impact of disorder on the 4O-martensite of Ni–Mn–Sn Heusler alloy

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The impact of disorder on the 4O-martensite of Ni–Mn–Sn Heusler alloy

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Intermetallics

ISSN

0966-9795

e-ISSN

1879-0216

Svazek periodika

151

Číslo periodika v rámci svazku

DEC

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

107708

Kód UT WoS článku

000856093100002

EID výsledku v databázi Scopus

2-s2.0-85138093986