Localized electronic states and the superconducting gap in Bi2Sr2CaCu2O8+y
β Scribed by C. Quitmann; Jian Ma; R.J. Kelley; G. Margaritondo; M. Onellion
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 251 KB
- Volume
- 235-240
- Category
- Article
- ISSN
- 0921-4534
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Superconducting properties of Bi2SrzCaCu208 films have been measured using the infra-red spectroscopy technique at fixed frequency. It is possible with this technique to determine the variation of the order parameter as a function of temperature and the critical magnetic field as a function of tempe
We report tunneling measurements of the superconducting energy gaps in YBa.Cu307 and Bi2Sr.CaCthO 8 using b~eak junctions. The differential conductance d/fdV at T = 4.2 K shows no leakage around zero ba~s, while the t,,q~ -dge peaks m d//dV are somewhat broadened compared to the simple BCS density o