Predicted giant magnetic moment on non-{n0m} surfaces of d-wave superconductors
Chia-Ren Hu, Xin-Zhong Yan
DOI 10.1103/PhysRevB.60.R12573 · Physical Review B
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Abstract
It has been noted 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 [11¯0] direction. Observing these predictions in high-Tc superconductors can provide a strong confirmation of the d-wave scenario for such materials.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Hg1201 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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