Ferromagnetism of LaCoO3 films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00534735" target="_blank" >RIV/68378271:_____/20:00534735 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0312913" target="_blank" >http://hdl.handle.net/11104/0312913</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21468/SciPostPhys.8.6.082" target="_blank" >10.21468/SciPostPhys.8.6.082</a>
Alternative languages
Result language
angličtina
Original language name
Ferromagnetism of LaCoO3 films
Original language description
We study ferromagnetic ordering and microscopic inhomogeneity in tensile strained LaCoO3 using numerical simulations. We argue that both phenomena originate from effective superexchange interactions between atoms in the high-spin (HS) state mediated by the intermediate-spin excitations. We derive a model of the HS excitation as a bare atomic state dressed by electron and electron-hole fluctuations on the neighbor atoms. We construct a series of approximations to account for electron correlation effects responsible for HS fluctuations and magnetic exchange. The obtained amplitudes and directional dependence of magnetic couplings between the 'dressed' HS states show a qualitative agreement with experimental observations and provide a new physical picture of LaCoO3 films.
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
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SciPost Physics
ISSN
2542-4653
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
6
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
21
Pages from-to
1-21
UT code for WoS article
000549932200001
EID of the result in the Scopus database
2-s2.0-85087376821