Disproportionation and metallization at low-spin to high-spin transition in multiorbital Mott systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00371418" target="_blank" >RIV/68378271:_____/11:00371418 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.256401" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.106.256401</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.256401" target="_blank" >10.1103/PhysRevLett.106.256401</a>
Alternative languages
Result language
angličtina
Original language name
Disproportionation and metallization at low-spin to high-spin transition in multiorbital Mott systems
Original language description
We study the thermally driven spin state transition in a two-orbital Hubbard model with crystal-field splitting, which provides a minimal description of the physics of LaCoO3. We employ the dynamical mean-field theory with a quantum Monte Carlo impuritysolver. At intermediate temperatures we find a spin disproportionated phase characterized by a checkerboard order of sites with small and large spin moments. The high temperature transition from the disproportionated to a homogeneous phase is accompaniedby a vanishing of the charge gap. With the increasing crystal-field splitting the temperature range of the disproportionated phase shrinks and eventually disappears completely.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP204%2F10%2F0284" target="_blank" >GAP204/10/0284: Magnetic and Transport Properties of LaCoO3: Dynamical Mean-Field Study</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
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 Letters
ISSN
0031-9007
e-ISSN
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Volume of the periodical
106
Issue of the periodical within the volume
25
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
"256401/1"-"256401/5"
UT code for WoS article
000291890700004
EID of the result in the Scopus database
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