Zhao, Y. G. ; Li, Eric ; Wu, Tom ; Ogale, S. B. ; Sharma, R. P. ; Venkatesan, T. ; Li, J. J. ; Cao, W. L. ; Lee, C. H. ; Sato, H. ; Naito, M. (2001) Optical cooper pair breaking spectroscopy of cuprate superconductors Physical Review B, 63 (13). 132507_1-132507_4. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v63/i13/e132507
Related URL: http://dx.doi.org/10.1103/PhysRevB.63.132507
Abstract
The photon energy dependence of the optical Cooper pair breaking rate (CPBR) is studied for compressibly strained La1.85Sr0.15CuO4 (LSCO) films and YBa2Cu2.92Zn0.08O7-δ (YBCZO) thin films, and compared to that in YBa2Cu3O7-δ (YBCO). Unlike YBCO, the CPBR for LSCO does not show an obvious photon energy dependence. In YBCZO, the CPBR shows a strong energy dependence similar to YBCO, but with a redshift in the peak position. Analysis of these results strongly favors a physical picture based on electronic phase separation in high-Tc superconductivity.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 26867 |
Deposited On: | 08 Dec 2010 13:04 |
Last Modified: | 17 May 2016 10:09 |
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