Interlayer tunneling in a non-Fermi-liquid metal

Abstract

We study the effect of interlayer tunneling in the gauge theory describing a quasi-two-dimensional paramagnetic metal close to a second-order or weakly first-order antiferromagnetic phase boundary. In that theory, two species of fermions have opposite (rather than equal) charges with respect to the gauge field. We find that single-particle interlayer tunneling is suppressed at low energies. The effect of pair tunneling is analyzed within the $(3-d)$ expansion. The resulting phase diagram has superconducting and non-Fermi-liquid normal phases, and so is compatible with that of the copper-oxide superconductors.

13 pages, latex, one uuencoded postscript figure

References in corpus (6)

• On the low energy properies of fermions with singular interactions
• Non-Fermi Liquid Fixed Point in 2+1 Dimensions
• Low Energy Dynamics of the Spinon-Gauge System
• Non-Fermi Liquid Behavior In Quantum Critical Systems
• Instantons and the spectral function of electrons in the half-filled Landau level
• Effective action of magnetic monopole in three-dimensional electrodynamics with massless matter and gauge theories of superconductivity

Cited by in corpus (2)

• An explanation for a universality of transition temperatures in families of copper oxide superconductors
• Universality of transition temperatures in families of copper-oxide superconductors: interlayer tunneling redux