Influence of intersublattice coupling on the terahertz nutation spin dynamics in antiferromagnets

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00552513" target="_blank" >RIV/68378271:_____/21:00552513 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0327670" target="_blank" >http://hdl.handle.net/11104/0327670</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.104.104405" target="_blank" >10.1103/PhysRevB.104.104405</a>

Result language
angličtina
Original language name
Influence of intersublattice coupling on the terahertz nutation spin dynamics in antiferromagnets
Original language description
Spin-nutation resonance has been well explored in one-sublattice ferromagnets. Here, we investigate the spin nutation in two-sublattice antiferromagnets as well as, for comparison, ferrimagnets with inter- and intrasub lattice nutation coupling. In particular, we derive the susceptibility of the two-sublattice magnetic system in response to an applied external magnetic field. To this end, the antiferromagnetic and ferrimagnetic (sub-THz) precession and THz nutation resonance frequencies are calculated. Our results show that the precession reso nance frequencies and effective damping decrease with intrasublattic nutation coupling, while they increase with intersublattice nutation in an antiferromagnet.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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