Magnetoelastic phenomena in antiferromagnetic uranium intermetallics: The UAu2Si2 case
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10388403" target="_blank" >RIV/00216208:11320/18:10388403 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00499865
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.98.174439" target="_blank" >https://doi.org/10.1103/PhysRevB.98.174439</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.98.174439" target="_blank" >10.1103/PhysRevB.98.174439</a>
Alternative languages
Result language
angličtina
Original language name
Magnetoelastic phenomena in antiferromagnetic uranium intermetallics: The UAu2Si2 case
Original language description
Thermal expansion, magnetostriction, and magnetization measurements under magnetic field and hydrostatic pressure were performed on a UAu2Si2 single crystal. They revealed a large anisotropy of magnetoelastic properties manifested by prominent length changes, leading to a collapse of the unit-cell volume accompanied by breaking the fourfold symmetry (similar to that in URu2Si2 in the hidden-order state) in the antiferromagnetic state as consequences of strong magnetoelastic coupling. The magnetostriction curves measured at higher temperatures confirm a bulk character of the 50 K weak ferromagnetic phase. The large positive pressure change of the ordering temperature predicted from Ehrenfest relation contradicts the more than an order of magnitude smaller pressure dependence observed by the magnetization and specific heat measured under hydrostatic pressure. A comprehensive magnetic phase diagram of UAu2Si2 in magnetic field applied along the c axis is presented. The ground-state antiferromagnetic phase is suppressed by a field-induced metamagnetic transition that changes its character from second to first order at the tricritical point.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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.)
Result continuities
Project
<a href="/en/project/LM2011025" target="_blank" >LM2011025: MLTL - Magnetism and Low Temperature Laboratories - operation and development of national research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review B
ISSN
2469-9950
e-ISSN
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Volume of the periodical
98
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000451602400005
EID of the result in the Scopus database
2-s2.0-85057431283