Peculiar magnetic properties of Er conditioned Ni43Co7Mn31Ga19 at ambient and hydrostatic pressures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10139983" target="_blank" >RIV/00216208:11320/13:10139983 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/13:00396192

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2013.02.144" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2013.02.144</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2013.02.144" target="_blank" >10.1016/j.jallcom.2013.02.144</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Peculiar magnetic properties of Er conditioned Ni43Co7Mn31Ga19 at ambient and hydrostatic pressures

Popis výsledku v původním jazyce

Recently, an attention has been paid to outstanding magnetic properties of martensitic phase of the Co-doped Heusler Ni2MnGa alloys with a paramagnetic gap that can be tuned by composition. We have prepared polycrystalline sample of Co doped Ni2MnGa alloy, Ni43Co7Mn31Ga19, with the very small amount of Er (0.1at.%). By the EDX analysis, a distinct segregation of Er was discovered in Er-rich phase while the main bulk material of the microcrystals was totally Er-free. Saturated magnetization M(5 K)= 3.27mu(B)/f.u. and the Curie temperatures T-C(A) = 453 K of austenite phase, were observed by a SQUID magnetometer on annealed sample and the standard magnetocaloric effect at vicinity of T-C(A) was measured by direct method with Delta T = 0.6 K. Magnetic susceptibility obeys nicely the Curie-Weiss law with paramagnetic moment of mu(eff) = 5.09 mu B/f.u. above T-C(A). However in the pronounced contrast with the Er-free alloys, both, the paramagnetic gap and mainly the martensitic transitions

Název v anglickém jazyce

Peculiar magnetic properties of Er conditioned Ni43Co7Mn31Ga19 at ambient and hydrostatic pressures

Popis výsledku anglicky

Recently, an attention has been paid to outstanding magnetic properties of martensitic phase of the Co-doped Heusler Ni2MnGa alloys with a paramagnetic gap that can be tuned by composition. We have prepared polycrystalline sample of Co doped Ni2MnGa alloy, Ni43Co7Mn31Ga19, with the very small amount of Er (0.1at.%). By the EDX analysis, a distinct segregation of Er was discovered in Er-rich phase while the main bulk material of the microcrystals was totally Er-free. Saturated magnetization M(5 K)= 3.27mu(B)/f.u. and the Curie temperatures T-C(A) = 453 K of austenite phase, were observed by a SQUID magnetometer on annealed sample and the standard magnetocaloric effect at vicinity of T-C(A) was measured by direct method with Delta T = 0.6 K. Magnetic susceptibility obeys nicely the Curie-Weiss law with paramagnetic moment of mu(eff) = 5.09 mu B/f.u. above T-C(A). However in the pronounced contrast with the Er-free alloys, both, the paramagnetic gap and mainly the martensitic transitions

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/GAP204%2F12%2F0692" target="_blank" >GAP204/12/0692: Magnetické polyfunkční materiály - nové přístupy teorie a experimentu</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

565

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

134-138

Kód UT WoS článku

000317815300021

EID výsledku v databázi Scopus

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