Far-Infrared Conductivity Measurements of Pair Breaking in Superconducting Nb0,5 Ti0,5N Thin Films Induced by an External Magnetic Field
Journal Article
·
· Physical Review Letters
We report the complex optical conductivity of a superconducting thin film of Nb{sub 0.5}Ti{sub 0.5}N in an external magnetic field. The field was applied parallel to the film surface and the conductivity extracted from far-infrared transmission and reflection measurements. The real part shows the superconducting gap, which we observe to be suppressed by the applied magnetic field. We compare our results with the pair-breaking theory of Abrikosov and Gor'kov and confirm directly the theory's validity for the optical conductivity.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY (BNL)
- Sponsoring Organization:
- DOE - Office Of Science
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1004987
- Report Number(s):
- BNL--94609-2011-JA; KC0401030
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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