Skip to content

Amperean Pairing Instability in the U(1) Spin Liquid State with Fermi Surface and Application to κ-(BEDT-TTF)2 Cu2 (CN)3

Sung-Sik Lee, Patrick A. Lee, T. Senthil

cond-mat.str-elarXiv:cond-mat/0607015

Abstract

Recent experiments on the organic compound κ-(BEDT-TTF)2 Cu2 (CN)3 raise the possibility that the system may be described as a quantum spin liquid. Here we propose a pairing state caused by the `Amperean' attractive interaction between spinons on a Fermi surface mediated by the U(1) gauge field. We show that this state can explain many of the observed low temperature phenomena and discuss testable consequences.

Create a lesson