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 …

Based on a previous review on magnetic resonance in quantum spin chains (Krug von
Nidda et al 2010 Eur. Phys. J. Spec. Top. 180 161–89) we report on further development in …

The observation of spinon excitations in the S= 1 2 triangular antiferromagnet Ca3ReO5Cl2
reveals a quasi-one-dimensional (1D) nature of magnetic correlations, in spite of the …

Spin-1/2 Heisenberg antiferromagnets Cs 2 CuCl 4 and Cs 2 CuBr 4 with distorted triangular-
lattice structures are studied by means of electron spin resonance spectroscopy in magnetic …

We study spin dynamics of ordered phases of Cs 2 CoBr 4 in a magnetic field using electron-
spin resonance (ESR) technique and theoretical analysis. This material hosts weakly …

Cs 2 CoBr 4 is a triangular-lattice antiferromagnet which can be viewed as weakly
interacting spin chains due to spatially anisotropic frustrating exchange couplings. The spin …

The electron spin resonance spectrum of a quasi-1D S= 1/2 antiferromagnet K 2 CuSO 4 Br
2 was found to demonstrate an energy gap and a doublet of resonance lines in a wide …

The spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice (ATL) is an
archetypal spin system hosting exotic quantum magnetism and dimensional crossover …

We present comprehensive high magnetic field studies of the alternating weakly coupled
ferro-antiferromagnetic (FM-AFM) spin-1/2 chain compound Cu 2 (OH) 3 Br, with the …

We report on electron spin resonance (ESR) studies of the spin relaxation in Cs 2 CuCl 4.
The main source of the ESR linewidth at temperatures T≤ 150 K is attributed to the uniform …