Amperean Pairing Instability in the U(1) Spin Liquid State with Fermi Surface and Application to $K-(BEDT-TTF_2)Cu_2(CN_3)$

Lee, Sung-Sik and Lee, Patrick A and Senthil, T (2007) Amperean Pairing Instability in the U(1) Spin Liquid State with Fermi Surface and Application to $K-(BEDT-TTF_2)Cu_2(CN_3)$. In: Physical Review Letters, 98 (6). 067006:1-4.

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Abstract

Recent experiments on the organic compound $K-(BEDT-TTF_2)Cu_2(CN_3)$ 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.

Item Type:	Journal Article
Publication:	Physical Review Letters
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to the American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	29 Mar 2007
Last Modified:	19 Sep 2010 04:36
URI:	http://eprints.iisc.ac.in/id/eprint/10430

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