Li, Eric ; Sharma, R. P. ; Ogale, S. B. ; Zhao, Y. G. ; Venkatesan, T. ; Li, J. J. ; Cao, W. L. ; Lee, C. H. (2002) Sharp resonant multiplet in femtosecond optical pair-breaking spectroscopy of optimally doped, underdoped, and Zn-doped YBa2Cu3O7-δ: transient insulating regions in the superconducting state Physical Review B, 65 (18). 184519_1-184519_7. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v65/i18/e184519
Related URL: http://dx.doi.org/10.1103/PhysRevB.65.184519
Abstract
Femtosecond optical pair breaking spectroscopy is performed on optimally doped, underdoped, and Zn-doped YBa2Cu3O7-δ (YBCO) thin films near 1.5 eV. A sharp resonant triplet fine structure is seen. The systematics of the data for the three cases brings out the key role of Cu-O plane system in the attendant processes. The peak separations are attributable to the reported phonon and magnetic excitations in the system. These results strongly suggest the presence of insulating antiferromagnetic domains in the superconducting state of these YBCO systems on a subpicosecond time scale.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 26855 |
| Deposited On: | 08 Dec 2010 13:04 |
| Last Modified: | 11 Jun 2011 11:09 |
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