LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8

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	LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8
	BIANCONI, A ; DELLALONGA, S ; LI, C ; POMPA, M ; CONGIUCASTELLANO, A ; UDRON, D ; FLANK, AM ; LAGARDE, P
刊名	PHYSICAL REVIEW B
	1991
卷号	44 期号:18 页码:10126
关键词	HIGH-TC SUPERCONDUCTORS ELECTRONIC-STRUCTURE PHOTOELECTRON-SPECTROSCOPY OXIDE SUPERCONDUCTORS POLYATOMIC-MOLECULES CRYSTAL-STRUCTURES EMISSION-SPECTRA BAND-STRUCTURE O SYSTEM BI2SR2CACU2O8
ISSN号	0163-1829
中文摘要	The linearly polarized Cu L3-edge x-ray-absorption near-edge structure (XANES) of Bi2Sr2CaCu2O8 + delta has been measured and the spectra are interpreted by the full multiple-scattering approach in real space. The polarized spectra over a range of 20 eV can be predicted in terms of the one-electron dipole (DELTA-l = +1) transition Cu 2p --> epsilon-d, probing the unoccupied d-like (l = 2) density of states projected on the Cu site with orbital angular momentum m(l) = 0, 1 in the E parallel-to z spectra, and the m(l) = 2, 1, and 0 in the E perpendicular-to c spectra. The oscillator strength for the dipole allowed transitions (DELTA-l = -1) Cu 2p --> epsilon-s is shown to be a factor of 100 weaker than the 2p --> 3d transitions. The Coulomb interaction in the final state between the Cu 2p core hole and the excited Cu 3d electron is found to be 5.5 eV forming a bound state below the continuum threshold, the well-known Cu L3 white line. On the contrary, the core hole induces a nearly rigid redshift about 1 eV of the high-energy conduction bands.
收录类别	SCI
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/40885]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	BIANCONI, A,DELLALONGA, S,LI, C,et al. LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8[J]. PHYSICAL REVIEW B,1991,44(18):10126.
APA	BIANCONI, A.,DELLALONGA, S.,LI, C.,POMPA, M.,CONGIUCASTELLANO, A.,...&LAGARDE, P.(1991).LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8.PHYSICAL REVIEW B,44(18),10126.
MLA	BIANCONI, A,et al."LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8".PHYSICAL REVIEW B 44.18(1991):10126.