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Distinct magnetic regimes through site-selective atom substitution in the frustrated quantum antiferromagnet CsCuClBr
P. T. Cong, B. Wolf, M. de Souza +11
We report on a systematic study of the magnetic properties on single crystals of the solid solution CsCuClBr (0 x 4), which include the two known end-…
Multi-step approach to microscopic models for frustrated quantum magnets - the case of the natural mineral azurite
Harald Jeschke, Ingo Opahle, Hem Kandpal +14
The natural mineral azurite Cu(CO)(OH) is a frustrated magnet displaying unusual and controversially discussed magnetic behavior. Motivated by the lack of a unified…
Orbital selective phase transition induced by different magnetic states: A dynamical cluster approximation study
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke +1
Motivated by the unexplored complexity of phases present in the multiorbital Hubbard model, we analyze in this work the behavior of a degenerate two-orbital anisotropic Hubbard mod…
Analysis of spin density wave conductivity spectra of iron pnictides in the framework of density functional theory
Johannes Ferber, Yu-Zhong Zhang, Harald O. Jeschke +1
The optical conductivity of LaFeAsO, BaFeAs, SrFeAs, and EuFeAs in the spin-density wave (SDW) state is investigated within density functional theory (DFT)…
Importance of Itinerancy and Quantum Fluctuations for the Magnetism in Iron Pnictides
Yu-Zhong Zhang, Hunpyo Lee, Ingo Opahle +2
By applying density functional theory, we find strong evidence for an itinerant nature of magnetism in two families of iron pnictides. Furthermore, by employing dynamical mean fiel…
Itinerant Nature of Magnetism in Iron Pnictides: A first principles study
Yu-Zhong Zhang, Ingo Opahle, Harald O. Jeschke +1
Within the framework of density functional theory we investigate the nature of magnetism in various families of Fe-based superconductors. (i) We show that magnetization of stripe-t…