Pressure-induced valence change and moderate heavy fermion state in Eu-compounds
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10378498" target="_blank" >RIV/00216208:11320/18:10378498 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physb.2017.09.094" target="_blank" >https://doi.org/10.1016/j.physb.2017.09.094</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physb.2017.09.094" target="_blank" >10.1016/j.physb.2017.09.094</a>
Alternative languages
Result language
angličtina
Original language name
Pressure-induced valence change and moderate heavy fermion state in Eu-compounds
Original language description
A pressure-induced valence transition has attracted much attention in Eu-compounds. Among them, EuRh2Si2, EuNi2Ge2, and EuCo2Ge2 reveal the valence transition around 1, 2, and 3 GPa, respectively. We have succeeded in growing single crystals of EuT2X2 (T: transition metal, X: Si, Ge) and studied electronic properties under pressure. EuRh2Si2 indicates a first-order valence transition between 1 and 2 GPa, with a large and prominent hysteresis in the electrical resistivity. At higher pressures, the first-order valence transition changes to a crossover regime with an intermediate valence state. Tuning of the valence state with pressure is reflected in a drastic change of the temperature dependence of the electrical resistivity in EuRh2Si2 single crystals. Effect of pressure on the valence states on EuRh2Si2, EuIr2Si2, EuNi2Ge2, and EuCo2Ge2, as well as an isostructural related compound EuGa4, are reviewed.
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/GA15-03777S" target="_blank" >GA15-03777S: Environment induced electron structure changes leading to novel magnetic phases</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Physica B: Condensed Matter
ISSN
0921-4526
e-ISSN
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Volume of the periodical
536
Issue of the periodical within the volume
květen
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
182-191
UT code for WoS article
000431075600045
EID of the result in the Scopus database
2-s2.0-85032227251