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Cu K-Edge Study of (Tl_(0.5)Pb_(0.5))Sr_2Ca_(1-x)Y_xCu_2O_(7-δ)

Liang, G. and Liu, R. S. and Wang, L. V. (1998) Cu K-Edge Study of (Tl_(0.5)Pb_(0.5))Sr_2Ca_(1-x)Y_xCu_2O_(7-δ). International Journal of Modern Physics B, 12 (29). pp. 3296-3298. ISSN 0217-9792. https://resolver.caltech.edu/CaltechAUTHORS:20170314-122702040

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Abstract

Near-edge x-ray-absorption spectra at the Cu K-edge has been measured for (Tl_(0.5)Pb_(0.5))Sr_2Ca_(1-x)Y_xCu_2O_(7-δ) compound series. It is found that both the intensity of the quadruple 1s → 3d transition feature and the edge-energy decrease with increasing x. Our results show that the Cu valence decreases slightly with the substitution of Ca^(+2) by Y^(+3). This result, together with recent O K-edge result the O-2p holes are reduced by the substitution, indicates that electronic charge is transferred into the entire CuO_2 layers by the Y^(+3) for Ca^(+2) substitution.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1142/S0217979298002507DOIArticle
http://www.worldscientific.com/doi/abs/10.1142/S0217979298002507PublisherArticle
ORCID:
AuthorORCID
Wang, L. V.0000-0001-9783-4383
Alternate Title:Cu K-Edge Study of (Tl0.5Pb0.5)Sr2Ca1-xYxCu2O7-δ
Additional Information:© 1998 World Scientific Publishing Co. Received: 23 February 1998; Revised: 23 April 1998.
Issue or Number:29
Record Number:CaltechAUTHORS:20170314-122702040
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170314-122702040
Official Citation:Cu K-Edge Study of (Tl0.5Pb0.5)Sr2Ca1-xYxCu2O7-δ G. Liang, R. S. Liu, and L. V. Wang International Journal of Modern Physics B 1998 12:29n31, 3296-3298
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75097
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Mar 2017 18:31
Last Modified:03 Oct 2019 16:46

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