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35 papers · 2 filters
High-field magnetic properties of the alternating ferro-antiferromagnetic spin-chain compound Cu(OH)Br
K. Yu. Povarov, Y. Skourskii, J. Wosnitza +3
We present comprehensive high magnetic field studies of the alternating weakly coupled ferro-antiferromagnetic (FM-AFM) spin- chain compound Cu(OH)Br, with the structu…
1/5 and 1/3 magnetization plateaux in the spin 1/2 chain system YbAlO3
P. Mokhtari, S. Galeski, U. Stockert +7
Quasi-one-dimensional magnets can host an ordered longitudinal spin-density wave state (LSDW) in magnetic field at low temperature, when longitudinal correlations are strengthened…
Continuous order-to-order quantum phase transitions from fixed-point annihilation
David Jonas Moser, Lukas Janssen
A central concept in the theory of phase transitions beyond the Landau-Ginzburg-Wilson paradigm is fractionalization: the formation of new quasiparticles that interact via emergent…
Electron correlation effects and spin-liquid state in the Herbertsmithite Kagome lattice
Sam Azadi, Kühne
We employ real-space variational quantum Monte Carlo methods with resonating valence bond many-body wave functions to investigate electron correlation effects in the Kagome system…
Fractionalized Superconductivity Mediated by Majorana Fermions in the Kitaev-Kondo Lattice
Matthew Bunney, Urban F. P. Seifert, Stephan Rachel +1
Superconductivity usually emerges from a metallic normal state which follows the Fermi-liquid paradigm. If, in contrast, the normal state is a fractionalized non-Fermi liquid, then…
Quasimolecular electronic structure of the trimer iridate BaNbIrO
M. Magnaterra, A. Sandberg, H. Schilling +17
The insulating mixed-valent Ir compound BaNbIrO hosts two holes per IrO trimer unit. We address the electronic structure via resonant inelastic…