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.
Related projects:	Struktura, elektronová struktura a optická odezva pokročilých materiálů IV Struktura, elektronová struktura a optická odezva pokročilých materiálů V