We review ground states and excitations of a quantum antiferromagnet on triangular and
other frustrated lattices. We pay special attention to the combined effects of magnetic field h …

A theoretical overview of the phenomenon of spontaneous magnon decays in quantum
antiferromagnets is presented. The intrinsic zero-temperature damping of magnons in …

The Heisenberg triangular-lattice quantum spin liquid and its phase transitions to nearby
magnetic orders have received much theoretical attention, but clear experimental …

We suggest that a randomization of the pseudodipolar interaction in the spin-orbit-generated
low-energy Hamiltonian of YbMgGaO 4 due to an inhomogeneous charge environment from …

We report the results of magnetization and specific heat measurements on Ba 3 CoSb 2 O 9,
in which the magnetic Co 2+ ion has a fictitious spin 1/2, and provide evidence that a spin …

We have performed high-field magnetization and electronic spin resonance (ESR)
measurements on Ba 3 CoSb 2 O 9 single crystals, which approximates the two-dimensional …

We present a comprehensive study of the dynamical properties of the quantum Heisenberg
antiferromagnet on a triangular lattice within the framework of spin-wave theory. The distinct …

Frustrated magnets hold the promise of material realizations of exotic phases of quantum
matter, but direct comparisons of unbiased model calculations with experimental …

We present single-crystal neutron scattering measurements of the spin-1/2 equilateral
triangular-lattice antiferromagnet Ba 3 CoSb 2 O 9. Besides confirming that the Co 2+ …

Abstract A spin-1/2 triangular-lattice Heisenberg antiferromagnet (TLHAF) is a prototypical
frustrated quantum magnet, which exhibits remarkable quantum many-body effects that arise …