Susceptibility of a spinon Fermi surface coupled to a U(1) gauge field

Abstract

We study the theory of a U(1) gauge field coupled to a spinon Fermi surface. Recently this model has been proposed as a possible description of the organic compound $\kappa -(BEDT-TTF{)}_{2}C{u}_2(CN{)}_3$. We calculate the susceptibility of this system and in particular examine the effect of pairing of the underlying spin liquid. We show that this proposed theory is consistent with the observed susceptibility measurements.

5 pages, 4 figures

References in corpus (2)

• U(1) Gauge Theory of the Hubbard Model : Spin Liquid States and Possible Application to k-(BEDT-TTF)_2 Cu_2 (CN)_3
• Amperean Pairing Instability in the U(1) Spin Liquid State with Fermi Surface and Application to $\kappa -(BEDT-TTF{)}_{2}C{u}_2(CN{)}_3$

Cited by in corpus (5)

• Spin liquids in geometrically perfect triangular antiferromagnets
• Transport Properties of a spinon Fermi surface coupled to a U(1) gauge field
• Magnetic Impurity as a Local Probe of the U(1) Quantum Spin Liquid with Spinon Fermi Surface
• Competing quantum spin liquids, gauge fluctuations, and anisotropic interactions in a breathing pyrochlore lattice
• Thermodynamic signatures of a fractionalized Fermi liquid