272 citations · 797 across the 6 of their papers we have counts for
6 papers
Extended supersolid phase of frustrated hard-core bosons on a triangular lattice
Fa Wang, Frank Pollmann, Ashvin Vishwanath
We study a model of hard-core bosons with frustrated nearest-neighbor hopping () and repulsion () on the triangular lattice. We argue for a supersolid ground state in the lar…
A Z spin-orbital liquid state in the square lattice Kugel-Khomskii model
Fa Wang, Ashvin Vishwanath
We argue for the existence of a liquid ground state in a class of square lattice models of orbitally degenerate insulators. Starting with the SU(4) symmetric Kugel-Khomskii model,…
Nodal Spin Density Wave and band topology of the FeAs based materials
Ying Ran, Fa Wang, Hui Zhai +2
The recently discovered FeAs-based materials exhibit a Spin Density Wave (SDW) in the undoped state, which gives way to superconductivity upon doping. Here we show that due…
Spin phonon induced colinear order and magnetization plateaus in triangular and kagome antiferromagnets. Applications to CuFeO_2
Fa Wang, Ashvin Vishwanath
Coupling between spin and lattice degrees of freedom are important in geometrically frustrated magnets where they can lead to degeneracy lifting and novel orders. We show that mode…
Quantum and Classical Spins on the Spatially Distorted Kagome Lattice: Applications to Volborthite
Fa Wang, Ashvin Vishwanath, Yong Baek Kim
In Volborthite, spin-1/2 moments form a distorted Kagomé lattice, of corner sharing isosceles triangles with exchange constants on two bonds and on the third bond. We stud…
Spin Liquid States on the Triangular and Kagome Lattices: A Projective Symmetry Group Analysis of Schwinger Boson States
Fa Wang, Ashvin Vishwanath
A symmetry based analysis (Projective Symmetry Group) is used to study spin liquid phases on the triangular and Kagomé lattices in the Schwinger boson framework. A maximum of eight…