Strong and selective magnon-phonon coupling in the van der Waals antiferromagnet CoPS3
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512403" target="_blank" >RIV/00216208:11320/25:10512403 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sit6WLrj1B" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sit6WLrj1B</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/8f92-lt57" target="_blank" >10.1103/8f92-lt57</a>
Alternative languages
Result language
angličtina
Original language name
Strong and selective magnon-phonon coupling in the van der Waals antiferromagnet CoPS3
Original language description
The Raman scattering response of the biaxial antiferromagnet CoPS(3) has been investigated as a function of both magnetic field and temperature. The peaks observed in the low-frequency spectral range (90-200 cm(-1)) have been identified as hybrid magnon-phonon excitations. The energies of the bare magnon and phonon modes and the effective coupling strengths between different excitation pairs have been determined. The strong and selective magnon-phonon interaction largely accounts for the pronounced splitting of two phononlike modes observed at 152 and 158 cm(-1) in the antiferromagnetic phase of CoPS(3). Based on the identification of bare magnon excitations and their magnetic-field dependence, we propose an updated set of parameters for the effective exchange (J(eff) = 9.9 meV) and biaxial magnetic anisotropy (D = 4.3 meV and E = -0.7 meV) and advocate for an apparent anisotropic g factor (g(x) = g(y) = 2, g(z) = 4) in the CoPS(3) antiferromagnet.
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
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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
Physical Review B
ISSN
2469-9950
e-ISSN
2469-9969
Volume of the periodical
112
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
165427
UT code for WoS article
001610486500003
EID of the result in the Scopus database
2-s2.0-105021242252