Ferromagnetism in 5f-band metamagnet UCoAl induced by Os doping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00462224" target="_blank" >RIV/68378271:_____/16:00462224 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/16:10324603

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.04.226" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2016.04.226</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.04.226" target="_blank" >10.1016/j.jallcom.2016.04.226</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ferromagnetism in 5f-band metamagnet UCoAl induced by Os doping

Popis výsledku v původním jazyce

UCoAl is a 5f-band metamagnet with a uniquely low transition field, 0.7 T, extremely sensitive to any perturbation such as elemental substitution. We study variations of magnetic properties in the UCoAl-UOsAl system on single and polycrystalline samples with different Os concentration. Os can substitute Co in UCoAl up to 20%, while preserving the ZrNiAl structure type. Pure UOsAl is hexagonal Laves phase. It is a weak Pauli paramagnet. Even a 2%-substitution of Os for Co shifts the critical field to zero and stabilizes ferromagnetism with the Curie temperature 26 K and uranium magnetic moment 0.4 mB. Higher Os content enhances both characteristics. All magnetic response is concentrated into the c-axis; the susceptibility for magnetic field along basal plane is low and practically temperature-independent. This work completes the study of the alloying of UCoAl with late transition metals and indicates that the non-magnetic band metamagnetism is very limited in the concentration range.

Název v anglickém jazyce

Ferromagnetism in 5f-band metamagnet UCoAl induced by Os doping

Popis výsledku anglicky

UCoAl is a 5f-band metamagnet with a uniquely low transition field, 0.7 T, extremely sensitive to any perturbation such as elemental substitution. We study variations of magnetic properties in the UCoAl-UOsAl system on single and polycrystalline samples with different Os concentration. Os can substitute Co in UCoAl up to 20%, while preserving the ZrNiAl structure type. Pure UOsAl is hexagonal Laves phase. It is a weak Pauli paramagnet. Even a 2%-substitution of Os for Co shifts the critical field to zero and stabilizes ferromagnetism with the Curie temperature 26 K and uranium magnetic moment 0.4 mB. Higher Os content enhances both characteristics. All magnetic response is concentrated into the c-axis; the susceptibility for magnetic field along basal plane is low and practically temperature-independent. This work completes the study of the alloying of UCoAl with late transition metals and indicates that the non-magnetic band metamagnetism is very limited in the concentration range.

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

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

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

681

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

275-282

Kód UT WoS článku

000376443300034

EID výsledku v databázi Scopus

2-s2.0-84968779807