Optical Cooper pair breaking spectroscopy of YBa2Cu2.8Zn0.2O7−δthin films
| Autor: | R. P. Sharma, T. Venkatesan, Yang Zhao, Tom Wu, Eric Li, Weilou Cao, Chi H. Lee, S. B. Ogale, Junwen Li |
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| Rok vydání: | 2002 |
| Předmět: |
Superconductivity
Photon Materials science Scenario based Condensed matter physics Metals and Alloys Resonance Condensed Matter Physics Condensed Matter::Superconductivity Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering Cooper pair Thin film Spectroscopy Absorption (electromagnetic radiation) |
| Zdroj: | Superconductor Science and Technology. 15:468-471 |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/0953-2048/15/3/336 |
| Popis: | In this paper, the photon-energy dependence of the optical Cooper pair breaking rate (CPBR) was studied for YBa2Cu2.8Zn0.2O7−δ (YBCZO) thin films, and was compared to that in YBCO. In YBCZO the CPBR also shows strong photon-energy dependence, similar to that in YBCO, but with a change in the position and shape of the absorption feature. The results were discussed in terms of the resonance of Cooper pair breaking and the involvement of the insulating stripes. This study favours a physical scenario based on electronic phase separation in high-Tc superconductivity. |
| Databáze: | OpenAIRE |
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