d-Wave Superconductivity Induced by Chern-Simons Term in High-Tc Cuprates
Abstract
We show that a Chern-Simons term for a gauge field describing a fluctuation of spins is induced by integrating out hole fields in the presence of spin-orbit coupling which originates from a buckling of the CuO2 plane. Through the Chern-Simons term, holes behave like skyrmion excitations in a spin system and become a superconducting state with dx2-y2 symmetry after the antiferromagnetic long-range order is destroyed.
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