Magnetic field -induced phase transition in a $d_{x^2-y^2}$-wave superconductor at low temperatures
| dc.creator | Hirschfeld, P. J. | |
| dc.creator | Wölfle, P. | |
| dc.date | 1998-03-23 | |
| dc.date | 1998-04-16 | |
| dc.date.accessioned | 2026-07-07T03:10:11Z | |
| dc.date.available | 2026-07-07T03:10:11Z | |
| dc.description | We consider, within BCS weak coupling theory, the instability of a $d_{x^2-y^2}$-wave superconductor to a state of mixed symmetry $d+iq$, $q=d_{xy},s$. In zero magnetic field we show that there is a large and physically reasonable range of interaction strengths for which a pure $d_{x^2-y^2}$ state is stable down to T=0. In this case a magnetic field, assumed to couple to quasiparticles via their Doppler shifts in the vortex superflow field, is shown to induce a phase transition at $T=T_c^*\sim \sqrt{H}$. Below $T_c^*$, the density of states remains gapless but its field dependence is substantially supressed. The theory explains many features of recent striking thermal conductivity measurements on BSCCO by Krishana et al. | |
| dc.description | This paper has been withdrawn due to an error discovered by the Authors in their treatment of the Doppler shifts of quasiparticles and quasiholes | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9803273 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9803273 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/28161 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Magnetic field -induced phase transition in a $d_{x^2-y^2}$-wave superconductor at low temperatures | |
| dc.type | text |