X-ray absorption spectroscopy study of the La0.7Ba0.3Mn1−xCoxO3 system

機構典藏 > College of Sciences > Graduate Institute & Department of Physics > Journal Article > Item 987654321/27587

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/27587

Title:	X-ray absorption spectroscopy study of the La0.7Ba0.3Mn1−xCoxO3 system
Authors:	張經霖;Chang, C. L.;Tai, M. F.;Chung, T. W.;Lee, F. Y.;Su, Y. W.;Liu, S. Y.;Hwang, C. S.;鄭伯昆;Tseng, P. K.;Shi, J. B.
Contributors:	淡江大學物理學系
Keywords:	X-ray absorption;Electronic structure
Date:	2000-02
Issue Date:	2009-12-31 10:27:47 (UTC+8)
Publisher:	Elsevier
Abstract:	We report the transition-metal (Mn and Co) K-edge X-ray absorption spectroscopy (XAS) study of a series of La0.7Ba0.3Mn1−xCoxO3 (0⩽x⩽1) samples. Systematic chemical shifts to higher energy with the Co content (x) are observed in both Mn and Co K-edge spectra. The chemical shift to higher energy in Mn K-edge spectra is caused by the decreased Mn3+/Mn4+ ratio due to Co substitution of Mn. The Co K-edge spectra show that the Co valence is between 2+ and 3+, which also increases with x. The effect of electronic structures on the physical properties are briefly discussed.
Relation:	Journal of Magnetism and Magnetic Materials 209(1-3), pp.240-242
DOI:	10.1016/S0304-8853(99)00701-5
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

Files in This Item:

File	Description	Size	Format
	期刊資訊	0Kb	Unknown	474	View/Open
index.html	館藏資訊	0Kb	HTML	315	View/Open
X-ray absorption spectroscopy study of the La0.7Ba0.3Mn1−xCoxO3 system.pdf		98Kb	Adobe PDF	2	View/Open