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 …

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 …

The magnetization of a quantum magnet can be pinned at a fraction of its saturated value by
collective effects. One example of such a plateau phase is found in spin-1/2 triangular-lattice …

We overview physical effects of exchange frustration and quantum spin fluctuations in (quasi-
) two dimensional (2D) quantum magnets (S= 1∕ 2) with square, rectangular and triangular …

An interplay of geometrical frustration and strong quantum fluctuations in a spin-1/2
triangular-lattice antiferromagnet (TAF) can lead to exotic quantum states. Here, we report …

Magnetization plateaus in quantum magnets—where bosonic quasiparticles crystallize into
emergent spin superlattices—are spectacular yet simple examples of collective quantum …

We report magnetocaloric and magnetic-torque evidence that in Cs 2 CuBr 4—a
geometrically frustrated Heisenberg S= 1 2 triangular-lattice antiferromagnet—quantum …

We report a thorough theoretical study of the low temperature phase diagram of Cs 2 Cu Cl
4, a spatially anisotropic spin S= 1∕ 2 triangular lattice antiferromagnet, in a magnetic field …

Motivated by very recent experimental observations of the 1/9-magnetization plateaus in
YCu 3 (OH) 6+ x Br 3-x and YCu 3 (OD) 6+ x Br 3-x, our study delves into the magnetic-field …