Inelastic light scattering studies of overdoped Y1-xCaxBa2Cu3O7-delta thin film

Title:	Inelastic light scattering studies of overdoped Y1-xCaxBa2Cu3O7-delta thin film
Authors:	Lin, J. H. Weng, S. M. Liu, H. L. Chung, P. C. Lin, J. -Y. 物理研究所 Institute of Physics
Issue Date:	1-Dec-2007
Abstract:	The vibrational and magnetic Raman excitation spectra were examined in overdoped Y1-xCaxBa2Cu3O7-delta thin films. Below T-c, certain phonons in undoped YBa2Cu3O7-delta (YBCO) show strong self-energy effects, which gradually vanish with increasing Ca concentration into the overdoped regime. The observed B-1g symmetry two-magnon excitation peak near 2900 cm(-1) in YBCO is significantly broadened, weakened, and shifts to the lower frequency with increasing Ca content, indicating the effective value of magnetic superexchange energy decreases and that the life time of the magrions becomes shorter with increasing hole concentrations. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI:	http://dx.doi.org/10.1002/pssb.200777110 http://hdl.handle.net/11536/3819
ISSN:	0370-1972
DOI:	10.1002/pssb.200777110
Journal:	PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume:	244
Issue:	12
Begin Page:	4598
End Page:	4601
Appears in Collections:	Conferences Paper

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APA	Lin, J. H., Weng, S. M., Liu, H. L., Chung, P. C., & Lin, J. -Y. (2007). Inelastic light scattering studies of overdoped Y1-xCaxBa2Cu3O7-delta thin film. WOS:000252309500052.
Bibtex	@article{Lin2007Inelastic, title={Inelastic light scattering studies of overdoped Y1-xCaxBa2Cu3O7-delta thin film}, author={Lin, J. H. and Weng, S. M. and Liu, H. L. and Chung, P. C. and Lin, J. -Y.}, journal={WOS:000252309500052}, year={2007}, url={http://ir.lib.nycu.edu.tw/handle/11536/3819}, }