Frustrated magnets are materials in which localized magnetic moments, or spins, interact
through competing exchange interactions that cannot be simultaneously satisfied, giving rise …

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 …

This book presents in a pedagogical yet complete way correlated systems in one dimension.
Recent progress in nanotechnology and material research have made one dimensional …

The first accounts of magnetism date back to the ancient Greeks who also gave magnetism
its name. It derives from Magnesia, a Greek town and province in Asia Minor, the …

The magnetic excitations of the quasi-2D spin-1/2 frustrated Heisenberg antiferromagnet Cs
2 CuCl 4 are explored throughout the 2D Brillouin zone using high-resolution time-of-flight …

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 …

We present an up-to-date survey of theoretical concepts and results in the field of one-
dimensional magnetism and of their relevance to experiments and real materials. Main …

The quantum spin-1∕ 2 antiferromagnetic Heisenberg model on a two dimensional
triangular lattice geometry with spatial anisotropy is relevant to describe materials such as …

The search for elementary excitations with fractional quantum numbers is a central
challenge in modern condensed-matter physics. It has long been speculated that two …

We review the role of strong electronic correlations in quasi-two-dimensional organic charge
transfer salts such as (BEDT-TTF) 2 X,(BETS) 2 Y, and β'-[Pd (dmit) 2] 2 Z. We begin by …