Anisotropic signatures of electronic correlations in the electrical resistivity of UTe2

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10450665" target="_blank" >RIV/00216208:11320/22:10450665 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vvkG0dWRo9" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vvkG0dWRo9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.106.144406" target="_blank" >10.1103/PhysRevB.106.144406</a>

Result language
angličtina
Original language name
Anisotropic signatures of electronic correlations in the electrical resistivity of UTe2
Original language description
Multiple unconventional superconducting phases are suspected to be driven by magnetic fluctuations in the heavy-fermion paramagnet UTe2, and a challenge is to identify the signatures of the electronic correlations, including the magnetic fluctuations, in the bulk physical quantities. Here, we investigate thoroughly the anisotropy of the electrical resistivity of UTe2 under intense magnetic fields up to 70 T, for different electrical-current and magnetic-field configurations. Two characteristic temperatures and an anisotropic low-temperature Fermiliquid-like coefficient A, controlled by the electronic correlations, are extracted. Their critical behavior near the metamagnetic transition induced at mu 0Hm ' 35 T for H II b is characterized. Anisotropic scattering processes are evidenced and magnetic fluctuations are proposed to contribute, via a Kondo hybridization, to the electrical resistivity. Our work appeals for a microscopic modeling of the anisotropic contributions to the electrical resistivity as a milestone for understanding magnetically mediated superconductivity in UTe2.
Czech name
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Czech description
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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.)

Project
<a href="/en/project/GA22-22322S" target="_blank" >GA22-22322S: Unconventional superconductors under extreme conditions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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