Optical excitation of quasiparticle pairs in the vortex core of high-superconductors
- 6 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (1) , 152-155
- https://doi.org/10.1103/physrevlett.69.152
Abstract
A far-infrared resonance has been observed in superconducting thin films in the presence of high magnetic fields. It corresponds to the quasiparticle pair creation process inside the vortex core. The resonance frequency is =1.3/ħ with a linewidth 1/τ≃0.6ω. This value for implies, within BCS theory, a large energy gap in .
Keywords
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