Magnetic and magnetoelastic properties of UCo2Si2 as studied by high-field magnetization and ultrasound measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00394491" target="_blank" >RIV/68378271:_____/13:00394491 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.87.214409" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.87.214409</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.87.214409" target="_blank" >10.1103/PhysRevB.87.214409</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic and magnetoelastic properties of UCo2Si2 as studied by high-field magnetization and ultrasound measurements

Popis výsledku v původním jazyce

We investigated antiferromagnet UCo2Si2 by magnetization and ultrasound measurements in pulsed magnetic fields up to 60 T. It is found that the crystal UCo2Si2, which has the AF type-I magnetic structure in zero field below TN=83 K, undergoes the metamagnetic phase transition to ferrimagnetic structure ++- type. The transition occurs when the magnetic field is applied along the c axis at 45 T (at 1.5 K). The transition is extremely sharp and exhibits a small but non-negligible hysteresis. With increasing temperature, it becomes broader and vanishes at TN. In ultrasound measurements, the transition appears as anomalies in the sound velocity and attenuation. Our analysis suggests that the low-temperature changes in the sound velocity and attenuation aredetermined by exchange renormalization caused by the sound waves.

Název v anglickém jazyce

Magnetic and magnetoelastic properties of UCo2Si2 as studied by high-field magnetization and ultrasound measurements

Popis výsledku anglicky

We investigated antiferromagnet UCo2Si2 by magnetization and ultrasound measurements in pulsed magnetic fields up to 60 T. It is found that the crystal UCo2Si2, which has the AF type-I magnetic structure in zero field below TN=83 K, undergoes the metamagnetic phase transition to ferrimagnetic structure ++- type. The transition occurs when the magnetic field is applied along the c axis at 45 T (at 1.5 K). The transition is extremely sharp and exhibits a small but non-negligible hysteresis. With increasing temperature, it becomes broader and vanishes at TN. In ultrasound measurements, the transition appears as anomalies in the sound velocity and attenuation. Our analysis suggests that the low-temperature changes in the sound velocity and attenuation aredetermined by exchange renormalization caused by the sound waves.

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%2F0150" target="_blank" >GAP204/12/0150: Magnetizmus, magnetoelasticita a magnetoakustika intermetalik s prvky vzácných zemin a uranu</a><br>

Návaznosti

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

Physical Review. B

ISSN

1098-0121

e-ISSN

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Svazek periodika

87

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

"214409-1"-"214409-8"

Kód UT WoS článku

000320164100001

EID výsledku v databázi Scopus

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