Predicted giant magnetic moment on non-{n0m} surfaces of d-wave superconductors --- Can it be observed and how?

Abstract

It has been noted previously that the sizable areal density of midgap states which must exist on any non-{n0m} surface of a d-wave superconductor can lead to a giant magnetic moment. Here we show that this effect is observable, and discuss two precise ways to observe it: (i) by directly measuring magnetic moment in a system with a large density of internal {110} surfaces, or (ii) by performing spin-polarized tunneling on a {110} surface. In both cases a sufficiently large magnetic field should be applied in the [1$\bar{1}$0] direction.

4 pages, three figures

References in corpus (4)

• Spin polarized tunneling in ferromagnet/unconventional superconductor junctions
• Doping Dependent Density of States and Pseudogap Behavior in La2-xSrxCuO4
• c-axis penetration depth of Hg-1201 single crystals
• Magnetic Field Effect in Josephson tunneling between d-Wave Superconductors

Cited by in corpus (2)

• Spintronics: Fundamentals and applications
• The effect of midgap states on the magnetic exchange interaction mediated by a $d$-wave superconductor