Raman spectroscopy and pressure-induced structural phase transition in UTe2
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00598745" target="_blank" >RIV/68378271:_____/25:00598745 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/25:10497344 RIV/61989100:27740/25:10257566
Result on the web
<a href="https://hdl.handle.net/11104/0359403" target="_blank" >https://hdl.handle.net/11104/0359403</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15302/frontphys.2025.014204" target="_blank" >10.15302/frontphys.2025.014204</a>
Alternative languages
Result language
angličtina
Original language name
Raman spectroscopy and pressure-induced structural phase transition in UTe2
Original language description
Results of the Raman scattering experiments, heat capacity measurements, ab initio simulations of the Raman spectra and pressure-induced phase transition in UTe2 single crystal are reported. Assignment of symmetries to particular Raman-active phonons follows directly from a comparative analysis of the measured and calculated Raman spectra. Theoretically determined lattice contribution to the specific heat of UTe2 allows for better description of its heat capacity measured over the temperatures ranging from 30 to 400 K. The orthorhombic-to-tetragonal phase transition pressure of 3.8 GPa is predicted at room temperature in very good agreement with the recent experimental studies. The phase transition remains almost phonon-independent with the transition pressure weakly temperature-dependent below 500 K. The strong local Coulomb correlations between U-5f electrons and spin−orbit interaction are shown to be important for realistic theoretical description of phonons and pressure-induced phase transition in UTe2.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers of Physics
ISSN
2095-0462
e-ISSN
2095-0470
Volume of the periodical
20
Issue of the periodical within the volume
1
Country of publishing house
CN - CHINA
Number of pages
12
Pages from-to
014204
UT code for WoS article
001469083600003
EID of the result in the Scopus database
2-s2.0-105000349979