Spontaneous Spin Textures in Multiorbital Mott Systems

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Authors

KUNES Jan GEFFROY Dominique

Year of publication 2016
Type Article in Periodical
Magazine / Source Physical Review Letters
MU Faculty or unit

Faculty of Science

Citation
Web http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.256403
Doi http://dx.doi.org/10.1103/PhysRevLett.116.256403
Field Solid matter physics and magnetism
Keywords strong correlations;excitonic condensation;dmft
Description Spin textures in k-space arising from spin-orbit coupling in noncentrosymmetric crystals find numerous applications in spintronics. We present a mechanism that leads to the appearance of k-space spin texture due to spontaneous symmetry breaking driven by electronic correlations. Using dynamical mean-field theory we show that doping a spin-triplet excitonic insulator provides a means of creating new thermodynamic phases with unique properties. The numerical results are interpreted using analytic calculations within a generalized double-exchange framework.
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