Zhao, Y. G. ; Cao, W. L. ; Li, J. J. ; Drew, H. D. ; Shreekala, R. ; Lee, C. H. ; Pai, S. P. ; Rajeswari, M. ; Ogale, S. B. ; Sharma, R. P. ; Baskaran, G. ; Venkatesan, T. (1999) Unusual photon energy dependence of the cooper pair breaking rate in YBa2Cu3O7-δ epitaxial thin films Journal of Superconductivity, 12 (5). pp. 675-680. ISSN 0896-1107
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Official URL: http://www.springerlink.com/content/l380kv58785280...
Related URL: http://dx.doi.org/10.1023/A:1007708304186
Abstract
The transient photoimpedance response of epitaxial YBa2Cu3O7- δthin films has been studied using 100 fs Ti:Sapphire laser pulse excitation. Both temperature and photon energy dependence of the fast optical response signal (whose temperature dependence can be explained by a kinetic inductance model involving Cooper pair breaking) were studied. The pair breaking rate is strongly photon energy-dependent, with a resonance around 1.5 eV with a width of only 100 meV, which is very surprising given the strong electron correlation in this metallic system and may be explained in terms of the stripe phase model.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer-Verlag. |
| Keywords: | YBCO; Cooper Pair; Thin Films; Ultrafast Phenomena |
| ID Code: | 1894 |
| Deposited On: | 08 Oct 2010 11:39 |
| Last Modified: | 06 Jul 2012 08:21 |
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