標題: Hole states of X-Bi2Sr2CaCu2O8 [X=I, HgI2, and (Py-CH3)(2)HgI4] probed by OK-edge X-ray absorption spectroscopy
作者: Chen, JM
Chang, SC
Liu, RS
Lee, JM
Park, M
Choy, JH
電子物理學系
Department of Electrophysics
公開日期: 1-Jan-2006
摘要: Hole states of X-Bi2Sr2CaCU2O8[X-Bi2212, X=I, HgI2, and (Py-CH3)(2)-HgI4, Py = pyridinel have been probed by O K-edge X-ray absorption near-edge structure (XANES) spectra. In the O 1s absorption edge of X-Bi2212, the pre-edge peak at similar to 528.3 eV is attributed to transitions into the 0 2p hole states located in the CuO2 planes. The hole concentration in the CuO2 planes of X-Bi2212 increases for X =I and HgI2, but decreases for X= (Py-CH3)(2)HgI4 as coMPared to pristine Bi2212. The variation of CuO2-plane hole concentration of Bi2212 is primarily responsible for the T-c variation upon intercalation. (c) 2005 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jpcs.2005.10.103
http://hdl.handle.net/11536/12770
ISSN: 0022-3697
DOI: 10.1016/j.jpcs.2005.10.103
期刊: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume: 67
Issue: 1-3
起始頁: 223
結束頁: 226
Appears in Collections:Conferences Paper


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