Pressure and magnetic field-induced transport effects in Ni45.4Mn40In14.6 alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10433381" target="_blank" >RIV/00216208:11320/21:10433381 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=aLt6y4gMJN" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=aLt6y4gMJN</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1402-4896/ac2b45" target="_blank" >10.1088/1402-4896/ac2b45</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pressure and magnetic field-induced transport effects in Ni45.4Mn40In14.6 alloy

Popis výsledku v původním jazyce

Electrical transport properties were investigated under hydrostatic pressure in the Ni45.4Mn40In14.6 alloy. Temperature dependency of electrical resistivity was analysed to find dominant scattering mechanisms and to estimate the volume change during martensitic transformation. The main contributions into electrical resistivity in austenitic phase were found to be scattering by magnetic fluctuations and scattering due to structural disorder. The latter provides significantly higher residual resistivity in comparison with that of the stoichiometric alloy due to irregular positions occupied by excess Mn atoms. The value of volume change upon austenite to martensite transformation was -0.09%. It was found that alloy is characterised by hole conductivity and negative anomalous Hall resistivity, which doubles on application of hydrostatic pressure due to pressure-induced martensitic transformation and reaches the magnitude of 20 mu omega center dot cm. The unusual correlation between the Hall and the longitudinal resistivities in the martensitic phase is discussed.

Název v anglickém jazyce

Pressure and magnetic field-induced transport effects in Ni45.4Mn40In14.6 alloy

Popis výsledku anglicky

Electrical transport properties were investigated under hydrostatic pressure in the Ni45.4Mn40In14.6 alloy. Temperature dependency of electrical resistivity was analysed to find dominant scattering mechanisms and to estimate the volume change during martensitic transformation. The main contributions into electrical resistivity in austenitic phase were found to be scattering by magnetic fluctuations and scattering due to structural disorder. The latter provides significantly higher residual resistivity in comparison with that of the stoichiometric alloy due to irregular positions occupied by excess Mn atoms. The value of volume change upon austenite to martensite transformation was -0.09%. It was found that alloy is characterised by hole conductivity and negative anomalous Hall resistivity, which doubles on application of hydrostatic pressure due to pressure-induced martensitic transformation and reaches the magnitude of 20 mu omega center dot cm. The unusual correlation between the Hall and the longitudinal resistivities in the martensitic phase is discussed.

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

<a href="/cs/project/LM2018096" target="_blank" >LM2018096: Laboratoř pro syntézu a měření materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Physica Scripta

ISSN

0031-8949

e-ISSN

—

Svazek periodika

96

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

SE - Švédské království

Počet stran výsledku

9

Strana od-do

125833

Kód UT WoS článku

000706469700001

EID výsledku v databázi Scopus

2-s2.0-85118538419