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Superconducting Energy Gap from Infrared Response Measurements in Granular Tl2Ba2CaCu2O8 Films
Article
Lengfellner, Hans, Schneider, G., Betz, J., Hogan, M., Prettl, Wilhelm and Renk, Karl Friedrich (1991) Superconducting Energy Gap from Infrared Response Measurements in Granular Tl2Ba2CaCu2O8 Films. Europhysics Letters 15 (3), pp. 343-347.DOI to cite this document: 10.5283/epub.17067
Abstract
The resistance response of polycrystalline Tl2Ba2CaCu2O8 films to short laser pulses has been investigated for a wide range of far-infrared frequencies. For temperatures T ll Tc a drastic change in response time is observed at a critical frequency νc simeq 4 THz. The time constant increases from about 1 ns at ν < νc to 1 μs at ν > νc. The critical frequency is attributed to a superconducting energy gap with 2Δ(0)/kB Tc simeq 2.
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| Item type | Article | ||||
| Journal or Publication Title | Europhysics Letters | ||||
| Publisher | EDP Sciences | ||||
| Volume | 15 | ||||
| Number of Issue or Book Chapter | 3 | ||||
| Page Range | pp. 343-347 | ||||
| Date | 1 June 1991 | ||||
| Date of publication | 06 Dec 2010 12:31 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Hans Lengfellner Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Wilhelm Prettl | ||||
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| Classification |
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| Keywords | Superconductivity | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Unknown | ||||
| Created at the University of Regensburg | Unknown | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-170678 | ||||
| Item ID | 17067 |
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