Electron spin resonance on a 2D van der Waals CrBr3 uniaxial ferromagnet

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927516" target="_blank" >RIV/60461373:22310/23:43927516 - isvavai.cz</a>
Result on the web
<a href="https://pubs.aip.org/aip/jap/article/133/3/034301/2867665" target="_blank" >https://pubs.aip.org/aip/jap/article/133/3/034301/2867665</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0117865" target="_blank" >10.1063/5.0117865</a>

Result language
angličtina
Original language name
Electron spin resonance on a 2D van der Waals CrBr3 uniaxial ferromagnet
Original language description
We report on the electron spin resonance (ESR) properties of a van der Waals bulk CrBr3 single crystal. Angular-and temperature-dependent studies are performed in the range of the critical temperature for ferromagnetic order. The angular-dependent data enable the determination of a strong uniaxial magnetic anisotropy constant, K, with the easy axis of magnetization being parallel to the crystallographic c axis. The peak-to peak ESR linewidth below the Curie temperature shows contributions from the term (3 cos(2) theta(-1))(2), thus suggesting the occurrence of long wavelength (q -> 0) modes of spin fluctuations typical for 2D systems. Finally, we analyze the temperature dependence of the double integrated ESR intensity, resonance field, and linewidth for the direction of the magnetic field parallel and perpendicular to the c easy axis. We determine Weiss's constant and the thermal dependence of K and observe the crossover region from linewidth narrowing to broadening approaching the critical temperature. Finally, we discuss our findings in the view of the potential application of CrBr3 in perpendicular magnetic tunneling junctions.
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
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/LTAUSA19034" target="_blank" >LTAUSA19034: Two-Dimensional Nanomaterials for Application in Electronic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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