Effect of high pressure on magnetic properties of CrMnFeCoNi high entropy alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00522096" target="_blank" >RIV/68081723:_____/19:00522096 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/19:00522096 RIV/00216305:26210/19:PU132293 RIV/00216224:14310/19:00113337

Result on the web

<a href="https://doi.org/10.1016/j.jmmm.2019.165333" target="_blank" >https://doi.org/10.1016/j.jmmm.2019.165333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2019.165333" target="_blank" >10.1016/j.jmmm.2019.165333</a>

Result language

angličtina

Original language name

Effect of high pressure on magnetic properties of CrMnFeCoNi high entropy alloy

Original language description

The temperature and magnetic field dependences of magnetization of the Cantor CrMnFeCoNi alloy were studied at ambient and high (up to 1 GPa) external pressure. The low-temperature spin-glass-like behavior and the paramagnetic behavior at temperatures above 100 K with effective paramagnetic moment of the alloy, m(eff )= 2.71 mu(B)/f, were observed. A negative value of the paramagnetic Curie temperature, theta(c) = 210 K, was found that confirms a presence of strong antiferromagnetic interactions of moments in the alloy. A model of the magnetic clusters with the effective moment of m(cl) = 0.275 mu(B)/f provides a possibility to describe qualitatively the pronounced difference between the pressure-induced decrease of magnetization of the ZFC and the FC alloys, dlnM/dP(5 K) = 15.5*10(-3) GPa(-1) and 39.2*10(-3) GPa(-1), respectively. The former value is in an excellent agreement with the value of 16*10(-3) GPa(-1) obtained from our quantum-mechanical calculations. The negative pressure shift of the ordering temperature of the alloy, dT(ord)/dP = 9 K/GPa, and the pressure-induced decrease of magnetization of the alloy in paramagnetic state, dlnM/dP(90 K) =70*10(-3) GPa(-1), indicate a possible itinerant character of magnetism of the alloy. The results of theoretical calculations of the total moment of the CrMnFeCoNi fcc-alloy are discussed.

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

2019

Confidentiality

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

Name of the periodical

Journal of Magnetism and Magnetic Materials

ISSN

0304-8853

e-ISSN

—

Volume of the periodical

487

Issue of the periodical within the volume

Oct

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

1-9

UT code for WoS article

000471754300006

EID of the result in the Scopus database

2-s2.0-85066434751