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Low-energy behavior of spin-liquid electron spectral functions
Evelyn Tang, Matthew P. A. Fisher, Patrick A. Lee
We calculate the electron spectral function for a spin-liquid with a spinon Fermi surface and a Dirac spin-liquid. Calculations are based upon the slave-rotor mean-field theory. We…
Chiral spin states in polarized kagome spin systems with spin-orbit coupling
Jia-Wei Mei, Evelyn Tang, Xiao-Gang Wen
We study quantum spin systems with a proper combination of geometric frustration, spin-orbit coupling and ferromagnetism. We argue that such a system is likely to be in a chiral sp…
High temperature fractional quantum Hall states
Evelyn Tang, Jia-Wei Mei, Xiao-Gang Wen
We show that a suitable combination of geometric frustration, ferromagnetism and spin-orbit interactions can give rise to nearly flat bands with a large bandgap and non-zero Chern…