Excitonic magnet in external field: Complex order parameter and spin currents

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00498396" target="_blank" >RIV/68378271:_____/18:00498396 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/18:00106668
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.97.155114" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.97.155114</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.97.155114" target="_blank" >10.1103/PhysRevB.97.155114</a>

Result language
angličtina
Original language name
Excitonic magnet in external field: Complex order parameter and spin currents
Original language description
We investigate spin-triplet exciton condensation in the two-orbital Hubbard model close to half-filling by means of dynamical mean-field theory. Employing an impurity solver that handles complex off-diagonal hybridization functions, we study the behavior of excitonic condensate in stoichiometric and doped systems subject to external magnetic field. We find a general tendency of the triplet order parameter to lie perpendicular with the applied field and identify exceptions from this rule. For solutions exhibiting k -odd spin textures, we discuss the Bloch theorem, which, in the absence of spin-orbit coupling, forbids the appearance of spontaneous net spin current. We demonstrate that the Bloch theorem is not obeyed by the dynamical mean-field theory.n
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
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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