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5 papers · 2 filters
How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator
Dorota Gotfryd, Ekaterina M. Paerschke, Jiri Chaloupka +2
The concept of the entanglement between spin and orbital degrees of freedom plays a crucial role in understanding various phases and exotic ground states in a broad class of materi…
Highly frustrated magnetism in relativistic Mott insulators: Bosonic analog of Kitaev honeycomb model
Jiří Chaloupka, Giniyat Khaliullin
We study the orbitally frustrated singlet-triplet models that emerge in the context of spin-orbit coupled Mott insulators with electronic configuration. In these compoun…
Metal-insulator transition in CaCuFeO
Atsushi Hariki, Tatsuya Yamaguchi, Mathias Winder +1
We study structurally-triggered metal-insulator transition in CaCuFeO by means of local density approximation (LDA) + and LDA+dynamical mean-field theory (DMFT).…
Sparse sampling and tensor network representation of two-particle Green's functions
Hiroshi Shinaoka, Dominique Geffroy, Markus Wallerberger +4
Many-body calculations at the two-particle level require a compact representation of two-particle Green's functions. In this paper, we introduce a sparse sampling scheme in the Mat…
Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
Juraj Rusnačko, Dorota Gotfryd, Jiří Chaloupka
Compounds of transition metal ions with strong spin-orbit coupling recently attracted attention due to the possibility to host frustrated bond-dependent anisotropic magnetic intera…