Metal–Insulator Transition in CaCu3Fe4O12

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00138941" target="_blank" >RIV/00216224:14310/24:00138941 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.7566/JPSJ.93.104702" target="_blank" >https://doi.org/10.7566/JPSJ.93.104702</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7566/JPSJ.93.104702" target="_blank" >10.7566/JPSJ.93.104702</a>

Result language
angličtina
Original language name
Metal–Insulator Transition in CaCu3Fe4O12
Original language description
We study structurally-triggered metal–insulator transition in CaCu3Fe4O12 by means of local density approximation (LDA)+U and LDA+dynamical mean-field theory (DMFT). The ferrimagnetic insulating phase is essentially the same within both approaches. While LDA+U describes the metal–insulator transition as a Peierls-like instability driven by Fermi surface nesting in the magnetically ordered phase, LDA+DMFT allows also the site-selective Mott transition without magnetic ordering as well as smooth crossover between the two pictures. We point out similarities and differences to rare-earth nickelates.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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