Structure of the normal state and origin of the Schottky anomaly in the correlated heavy-fermion superconductor UTe2
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00580276" target="_blank" >RIV/68378271:_____/23:00580276 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.107.214501" target="_blank" >https://doi.org/10.1103/PhysRevB.107.214501</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.107.214501" target="_blank" >10.1103/PhysRevB.107.214501</a>
Alternative languages
Result language
angličtina
Original language name
Structure of the normal state and origin of the Schottky anomaly in the correlated heavy-fermion superconductor UTe2
Original language description
The recently discovered UTe2 superconductor is regarded as a heavy-fermion mixed-valence system with very peculiar properties within the normal and superconducting (SC) states. It does not order magnetically, but has a strong anisotropy of magnetic susceptibility and SC critical field. In addition to a heavy-fermion-like behavior in the normal state, it exhibits a distinctive Schottky-type anomaly at ∼12 K and a characteristic excitations gap ∼35−40 K. Here, we show, by virtue of dynamical mean-field theory calculations with a quasiatomic treatment of electron correlations, that ab initio-derived crystal-field splitting of the 5f2 ionic configuration yields agreement with these experimental observations. A close analogy of the normal paramagnetic state of UTe2 to that of URu2Si2 in the Kondo arrest scenario is revealed.n
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
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA22-19416S" target="_blank" >GA22-19416S: Strain engineering of magnetic and transport properties in thin uranium-based films</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
2469-9969
Volume of the periodical
107
Issue of the periodical within the volume
21
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
214501
UT code for WoS article
001009498800002
EID of the result in the Scopus database
2-s2.0-85163296158