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Nontrivial Triplon Topology and Triplon Liquid in Kitaev-Heisenberg-type Excitonic Magnets
Pavel S. Anisimov, Friedemann Aust, Giniyat Khaliullin +1
The combination of strong spin-orbit coupling and correlations, e.g. in ruthenates and iridates, has been proposed as a means to realize quantum materials with nontrivial topologic…
Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors
J. Herbrych, J. Heverhagen, N. D. Patel +4
Inelastic neutron scattering recently confirmed the theoretical prediction of a -magnetic state along the legs of quasi-one-dimensional (quasi…
A Unique Crystal Structure of CaRuO in the Current Stabilized Semi-Metallic State
J. Bertinshaw, N. Gurung, P. Jorba +13
The electric-current stabilized semi-metallic state in the quasi-two-dimensional Mott insulator CaRuO exhibits an exceptionally strong diamagnetism. Through a comprehensive…
Phenomenological Three-Orbital Spin-Fermion Model for Cuprates
Mostafa Sherif Derbala Aly Hussein, Maria Daghofer, Elbio Dagotto +1
A spin-fermion model that captures the charge-transfer properties of Cu-based high critical temperature superconductors is introduced and studied via Monte Carlo simulations. The s…
Spinon-orbiton repulsion and attraction mediated by Hund's rule
Jonas Heverhagen, Maria Daghofer
We study the impact of Hund's-rule coupling on orbital excitations, as e.g. measured in inelastic resonant x-ray scattering. We find that the interpretation in terms of spin-orbit…