270 citations · 1.6k across the 22 of their papers we have counts for
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Magnon Decay in Noncollinear Quantum Antiferromagnets
A. L. Chernyshev, M. E. Zhitomirsky
Instability of the excitation spectrum of an ordered noncollinear Heisenberg antiferromagnet (AF) with respect to spontaneous two-magnon decays is investigated. We use a spin-1/2 A…
Distorted vortex lattice in a tetrahedral superconductor
V. H. Dao, M. E. Zhitomirsky
Equilibrium shape and orientation of vortex lattice are studied for an s-wave tetrahedral superconductor in the vicinity of the upper critical field. The phase diagram, which inclu…
Magnetic ordering in Gd2Sn2O7: the archetypal Heisenberg pyrochlore antiferromagnet
A. S. Wills, M. E. Zhitomirsky, B. Canals +4
Low-temperature powder neutron diffraction measurements are performed in the ordered magnetic state of the pyrochlore antiferromagnet Gd2Sn2O7. Symmetry analysis of the diffraction…
Decay of quasiparticles in quantum spin liquids
M. E. Zhitomirsky
Magnetic excitations are studied in gapped quantum spin systems, for which spontaneous two-magnon decays are allowed by symmetry. Interaction between one- and two-particle states a…