Interlayer tunneling in a non-Fermi-liquid metal.
نویسنده
چکیده
We study the effect of interlayer tunneling in the gauge theory describing a quasitwo-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.
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ورودعنوان ژورنال:
- Physical review. B, Condensed matter
دوره 53 18 شماره
صفحات -
تاریخ انتشار 1996