There is a long time gap between the formulation of the basic theory of low-dimensional (low-
D) magnetism as advanced by Ising, Heisenberg and Bethe and its experimental …

This article reviews experimental and theoretical work on Bose-Einstein condensation in
quantum magnets. These magnets are natural realizations of gases of interacting bosons …

The triangular lattice of S= 1/2 spins with XXZ anisotropy is a ubiquitous model for various
frustrated systems in different contexts. We determine the quantum phase diagram of the …

Strong geometrical frustration in magnets leads to exotic states such as spin liquids, spin
supersolids, and complex magnetic textures. SrCu2 (BO3) 2, a spin-1/2 Heisenberg …

Single crystals of the spin dimer system Sr 3 Cr 2 O 8 have been grown for the first time.
Magnetization, heat capacity, and magnetocaloric effect data up to 65 T reveal magnetic …

The quantum dimer magnet (QDM) is the canonical example of quantum magnetism. The
QDM state consists of entangled nearest-neighbor spin dimers and often exhibits a field …

Quantum fluctuations become particularly relevant in highly frustrated quantum magnets and
can lead to new states of matter. We provide a simple and robust scenario for inducing …

The natural mineral azurite Cu 3 (CO 3) 2 (OH) 2 is an interesting spin-1/2 quantum
antiferromagnet. Recently, a generalized diamond chain model has been established as a …

Dimerized quantum magnets are exotic crystalline materials where Bose–Einstein
condensation of magnetic excitations can happen. However, known dimerized quantum …

A new calorimeter for measurements of the heat capacity and magnetocaloric effect of small
samples in pulsed magnetic fields is discussed for the exploration of thermal and …