Pressure-induced itinerant electron metamagnetism in UCo0.995Os0.005Al ferromagnet

Kód výsledku v IS VaVaI

RIV/68378271:_____/18:00490189 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1016/j.physb.2017.10.114

DOI - Digital Object Identifier

10.1016/j.physb.2017.10.114

Jazyk výsledku

angličtina

Název v původním jazyce

Pressure-induced itinerant electron metamagnetism in UCo0.995Os0.005Al ferromagnet

Popis výsledku v původním jazyce

The effect of external hydrostatic pressure on magnetic properties is studied for the UCo0.995Os0.005Al single crystal. At ambient pressure, the ground state is ferromagnetic. Even lowest applied pressure 0.11 GPa is sufficient to suppress ferromagnetism. A sharp metamagnetic transition is observed only in magnetic fields along the c axis of the crystal, similar to previously studied itinerant electron metamagnet UCoAl. Temperature dependence of the susceptibility for various pressures shows a broad maximum at T-max similar to 20 K. The experimental data are analyzed with the theory of itinerant electron metamagnetism, which considers anisotropic thermal fluctuations of the uranium magnetic moment. The observed pressure dependence of the susceptibility at Tmax and the temperature for the disappearance of the first-order metamagnetic transition are explained with the theory.

Název v anglickém jazyce

Pressure-induced itinerant electron metamagnetism in UCo0.995Os0.005Al ferromagnet

Popis výsledku anglicky

The effect of external hydrostatic pressure on magnetic properties is studied for the UCo0.995Os0.005Al single crystal. At ambient pressure, the ground state is ferromagnetic. Even lowest applied pressure 0.11 GPa is sufficient to suppress ferromagnetism. A sharp metamagnetic transition is observed only in magnetic fields along the c axis of the crystal, similar to previously studied itinerant electron metamagnet UCoAl. Temperature dependence of the susceptibility for various pressures shows a broad maximum at T-max similar to 20 K. The experimental data are analyzed with the theory of itinerant electron metamagnetism, which considers anisotropic thermal fluctuations of the uranium magnetic moment. The observed pressure dependence of the susceptibility at Tmax and the temperature for the disappearance of the first-order metamagnetic transition are explained with the theory.

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Physica. B

ISSN

0921-4526

e-ISSN

—

Svazek periodika

536

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

522-526

Kód UT WoS článku

000431075600121

EID výsledku v databázi Scopus

2-s2.0-85035195522