Interlayer tunneling in a non-Fermi-liquid metal

Journal Article · Wed May 01 00:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R11964· OSTI ID:283923

Khlebnikov, S ^[1]

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1. Department of Physics, Purdue University, West Lafayette, Indiana 47907 (United States)

We study the effect of interlayer tunneling in the gauge theory describing a quasi-two-dimensional paramagnetic metal that has 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{minus}{ital 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. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Purdue Research Foundation
• DOE Contract Number: FG02-91ER40681
• OSTI ID: 283923
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 18 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GAUGE INVARIANCE
METALS
PARAMAGNETISM
QUANTUM FIELD THEORY
TRANSPORT THEORY
TUNNELING