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Signatures of low-energy fractionalized excitations in -RuCl from field-dependent microwave absorption
C. Wellm, J. Zeisner, A. Alfonsov +7
Topologically ordered states of matter are generically characterized by excitations with quantum number fractionalization. A prime example is the spin liquid realized in Kitaev's h…
Low temperature enhancement of ferromagnetic Kitaev correlations in α-RuCl3
Andreas Koitzsch, Eric Mueller, Martin Knupfer +7
Kitaev-type interactions between neighbouring magnetic moments emerge in the honeycomb material -RuCl3. It is debated however whether these Kitaev interactions are ferromagnetic…
Designing 3D topological insulators by 2D-Xene (X = Ge, Sn) sheet functionalization in the GaGeTe-type structures
Florian Pielnhofer, Tatiana V. Menshchikova, Igor P. Rusinov +10
State-of-the-art theoretical studies anticipate a 2D Dirac system in the "heavy" analogues of graphene, free-standing buckled honeycomb-like Xenes (X = Si, Ge, Sn, Pb, etc.). Herew…
Large field-induced gap of Kitaev-Heisenberg paramagnons in -RuCl
Richard Hentrich, Anja U. B. Wolter, Xenophon Zotos +12
The honeycomb Kitaev-Heisenberg model is a source of a quantum spin liquid with Majorana fermions and gauge flux excitations as fractional quasiparticles. In the quest of finding a…