Spin polarised carrier injection into high T_c superconductor: A test for the superconductivity mechanism?
| dc.creator | Bhatttacharjee, Satadeep | |
| dc.creator | Sardar, Manas | |
| dc.date | 2000-07-07 | |
| dc.date.accessioned | 2026-07-07T02:38:09Z | |
| dc.date.available | 2026-07-07T02:38:09Z | |
| dc.description | We point out in this short communique, that be it a s-wave or d-wave superconductor, in a non equalibrium situation(i.e. in presence of excess unpolarised/polarised quasi-particles maintained by an injection current) the superconducting gap suppresion by the presence of same amount excess quasi-particles, can at best differ by a factor of 2, for a conventional BCS superconductor. For the high $T_c$ superconductors on the other hand, there is a huge difference in gap suppresion between upolarised/polarised quasiparticle injection, as observed in the experiments\cite{gold}. We argue that this this large anomaly has a natural explanation within the {\it Interleyer tunneling mechanism} of Wheatley, Hsu and Anderson\cite{and}, and is due to the excess polarised quasiparticles blocking the interlayer pair tunneling process. We also point out that spin polarised quasi-particle injection in a superconductor is a very easy way to distinguish between a s-wave or an anisotropic gap superconductor. | |
| dc.description | Submitted to Phys. Rev B, 5pages Tex file, with 4 postscript figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0007118 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0007118 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16563 | |
| dc.subject | Superconductivity | |
| dc.title | Spin polarised carrier injection into high T_c superconductor: A test for the superconductivity mechanism? | |
| dc.type | text |