5 papers
Quantum-classical correspondence for spins at finite temperatures with application to Monte Carlo simulations
A. El Mendili, M. E. Zhitomirsky
We consider quantum-to-classical mapping for an arbitrary system of interacting spins at finite temperatures. We prove that, in the large- limit, the asymptotic form of the part…
Longitudinal magnons in large- easy-axis magnets
A. El Mendili, T. Ziman, M. E. Zhitomirsky
Longitudinal magnons are a distinct type of multipolar excitations in magnetic materials with large spins and strong easy-axis anisotropy. These excitations have angular m…
Strong and selective magnon-phonon coupling in van der Waals antiferromagnet CoPS
Dipankar Jana, Diana Vaclavkova, Rajesh Kumar Ulaganathan +6
The Raman scattering response of the biaxial antiferromagnet CoPS has been investigated as a function of both magnetic field and temperature. The peaks observed in the low-freq…
Defect-induced spin textures in magnetic solids
M. E. Zhitomirsky, Vijay B. Shenoy, Roderich Moessner
Vacancy defects in isotropic noncollinear antiferromagnets produce long-range spin textures. By developing a "magnetic elasticity theory", we demonstrate that a vacancy-induced rea…
Fully-frustrated octahedral antiferromagnets: emergent complexity in external field
A. S. Gubina, T. Ziman, M. E. Zhitomirsky
Octahedral antiferromagnets are distinguished by crystal lattices composed of octahedra of magnetic ions. In the fully frustrated case, the Heisenberg Hamiltonian can be represente…