Abstract The Bose–Einstein condensate (BEC) is a fascinating state of matter predicted to
occur for particles obeying Bose statistics. Although the BEC has been observed with …

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

Perhaps as many as ten years ago a colleague of mine pointed out to me that the Second
Edition of this book was “out of print”. I mentioned this to my editor, who at that time was …

Besides being an ancient pigment, B a C u S i 2 O 6 is a quasi-2D magnetic insulator with a
gapped spin dimer ground state. The application of strong magnetic fields closes this gap …

It has recently been suggested that the organic compound NiCl 2-4 SC (NH 2) 2 (DTN)
undergoes field-induced Bose-Einstein condensation (BEC) of the Ni spin degrees of …

The condensation of magnetic quasiparticles into the nonmagnetic ground state has been
used to explain novel magnetic ordering phenomena observed in quantum spin systems …

We review recent theoretical and experimental efforts aimed at the investigation of the
physics of interacting disordered bosons (so-called dirty bosons) in the context of quantum …

We report the magnetic-field-induced Bose glass–Bose-Einstein condensate (BEC)
transition of triplons in Tl 1-x K x CuCl 3 and its critical behavior, which were investigated …

Strongly correlated spin systems can be driven to quantum critical points via various routes.
In particular, gapped quantum antiferromagnets can undergo phase transitions into a …

In this work, we demonstrate field-induced Bose-Einstein condensation (BEC) in the organic
compound NiCl 2-4 SC (NH 2) 2 using ac susceptibility measurements down to 1 mK. The Ni …