Chiral spin states in polarized kagome spin systems with spin-orbit coupling

2011/02/11 by Jia-Wei Mei, Evelyn Tang, Mei, Jia-Wei +3
Physics and Astronomy · #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.1102.2406

arxiv created 2011/02/11 · arxiv updated 2011/02/14

Abstract

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 spin state, a fractional quantum Hall (FQH) state for bosonic spin degrees of freedom. The energy scale of the bosonic FQH state is of the same order as the spin-orbit coupling and ferromagnetism --- overall much higher than the energy scale of FQH states in semiconductors.

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