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arXiv · 0806.3323

Na4Ir3O8 as a 3D spin liquid with fermionic spinons

Yi Zhou·Patrick A. Lee·Tai-Kai Ng·Fu-Chun Zhang
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Abstract

Spin liquid states for spin-1/2 antiferromagnetic Heisenberg model on a hyperkagome lattice are studied. We classify and study flux states according to symmetries. Applying this model to Na4Ir3O8, we propose that the high temperature state may be described by a spinon Fermi surface, which forms a paired state with line nodes below 20 K. The possible mixed spin singlet and spin triplet pairing states are discussed according to the lattice symmetry which breaks inversion.

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Yi Zhou, Patrick A. Lee, Tai-Kai Ng, Fu-Chun Zhang. 2008-11-05. Na4Ir3O8 as a 3D spin liquid with fermionic spinons. https://doi.org/10.1103/physrevlett.101.197201

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