Intrinsic Junction Barrier Originating from Tilt in Contacts Between d(x**2-y**2) Wave Superconductors

It is shown that a boundary region with a depressed order parameter is intrinsically created at the interface between two d(x**2-y**2) wave superconductors, which form a contact at a tilt angle. The contact is a weak link or a Josephson junction, with properties determined by the misalignment angle. The mechanism presented is a candidate to account for the angular-dependent transport properties of grain boundaries in high-Tc superconductors.

By: H. Hilgenkamp and J. Mannhart

Published in: Applied Physics A, volume 64, (no 6), pages 553-4 in 1997

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