Large Dzyaloshinskii-Moriya interaction and atomic layer thickness dependence in a ferromagnet-WS2 heterostructure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00567863" target="_blank" >RIV/68378271:_____/22:00567863 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.105.064422" target="_blank" >https://doi.org/10.1103/PhysRevB.105.064422</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.105.064422" target="_blank" >10.1103/PhysRevB.105.064422</a>
Alternative languages
Result language
angličtina
Original language name
Large Dzyaloshinskii-Moriya interaction and atomic layer thickness dependence in a ferromagnet-WS2 heterostructure
Original language description
Two-dimensional transition metal dichalcogenides (TMDs) have immense potential for spintronics applications. Here, we report atomic layer thickness dependence in WS2/Co3FeB heterostructures. The layer dependence is predicted by density functional theory and demonstrated experimentally by the layer dependence of the Dzyaloshinskii-Moriya interaction (DMI). Notably, we have observed the DMI in WS2 to be larger than that for heavy metals such as W and Ta, which is important to stabilize chiral structures. Inversion symmetry is not preserved with an odd number of layers, while it exists with an even number of layers. This symmetry rule is reflected in the temperature dependence of the effective damping parameter of the heterostructure. This suggests that the layer dependence has its origin at the WS2 interface, where the spin-valley coupling and spin-orbit coupling activate these features.n
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
2022
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
105
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
064422
UT code for WoS article
000761166700004
EID of the result in the Scopus database
2-s2.0-85125187885