Universal properties of highly frustrated quantum magnets in strong magnetic fields

作者：Derzhko O^*; Richter J; Honecker A; Schmidt H J

来源：Low Temperature Physics, 2007, 33(9): 745-756.

DOI：10.1063/1.2780166

The purpose of the present paper is twofold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin antiferromagnets which admit the so-called localized-magnon eigenstates. On the other hand, we provide some complementary new results. We focus on the linear independence of the localized-magnon states, the estimation of their degeneracy with the help of auxiliary classical lattice-gas models, and the analysis of the contribution of these states to thermodynamics.

• 出版日期2007-9