Schedule Apr 27, 2007
Field Induced Supersolid Phase in Spin-One Heisenberg Models
Pinaki Sengupta (LANL)

We use quantum Monte Carlo methods to demonstrate that the phasediagram of S=1 Heisenberg models with uniaxial anisotropy containsan extended supersolid phase. We show that this Hamiltonian is aparticular case of a more general and ubiquitous model that describesthe low energy spectrum of a class of {\it isotropic} and{\it frustrated} spin--dimer systems. This result is crucial for findinga spin supersolid state in real magnets.

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