CHIRALITY ORDERING OF CHIRAL SPIN LIQUIDS

[摘要] We study the effect of introducing a weak antiferromagnetic interplanar exchange coupling in the two-dimensional frustrated Heisenberg model. We show that a ferromagnetic (FM) ordering of chirality-i.e., the same chirality on adjacent planes-is energetically favored, thus leading to bulk violation of the discrete symmetries parity (P) and time reversal (T).

[关键词] TIME-REVERSAL SYMMETRY;HIGH-TC SUPERCONDUCTORS;MODEL;SYSTEM;STATES;SEARCH