283 citations · 695 across the 13 of their papers we have counts for
13 papers
Order and excitations in large- kagomé-lattice antiferromagnets
A. L. Chernyshev, M. E. Zhitomirsky
We systematically investigate the ground-state and the spectral properties of antiferromagnets on a kagomé lattice with several common types of the planar anisotropy: , single…
Spontaneous Magnon Decays
M. E. Zhitomirsky, A. L. Chernyshev
A theoretical overview of the phenomenon of spontaneous magnon decays in quantum antiferromagnets is presented. The intrinsic zero-temperature damping of magnons in quantum spin sy…
Dynamical structure factor of quasi-2D antiferromagnet in high fields
W. T. Fuhrman, M. Mourigal, M. E. Zhitomirsky +1
We study high-field magnon dynamics and examine the dynamical structure factor in the quasi-2D tetragonal Heisenberg antiferromagnet with interlayer coupling corresponding to reali…
Quantum fluctuations and strong mass renormalization in NiCl2-4SC(NH2)2
Y. Kohama, A. Sologubenko, N. R. Dilley +9
In a number of quantum paramagnets, magnetic field can induce a quantum phase transition to an antiferromagnetic state which exists for a range of fields Hc1 < H < Hc2. Generally,…
Field-induced decay dynamics in square-lattice antiferromagnet
M. Mourigal, M. E. Zhitomirsky, A. L. Chernyshev
Dynamical properties of the square-lattice Heisenberg antiferromagnet in applied magnetic field are studied for arbitrary value S of the spin. Above the threshold field for two-par…
Thermal drag revisited: Boltzmann versus Kubo
Suhas Gangadharaiah, A. L. Chernyshev, Wolfram Brenig
The effect of mutual drag between phonons and spin excitations on the thermal conductivity of a quantum spin system is discussed. We derive general expression for the drag componen…