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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

  • Czech description

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