PROFILE CHANGES OF THE OXYGEN K X-RAY FLUORESCENCE SPECTRA OF COPPER COMPOUNDS INCLUDING HIGH Tc SUPERCONDUCTORS
نویسندگان
چکیده
منابع مشابه
X-ray absorption near-edge spectra of overdoped La2−xSrxCuO4 high-Tc superconductors
We present results for realistic modeling of the x-ray absorption near edge structure (XANES) of the overdoped high-Tc superconductor La2−xSrxCuO4 in the hole doping range x = 0.20 − 0.30. Our computations are based on a real-space Green’s function approach in which strong-correlation effects are taken into account in terms of a doping-dependent self-energy. The predicted O K-edge XANES is foun...
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It is now well established that oxygen plays a crucial role in the structural, magnetic and transport properties of high Tc materials. We present here a brief review of the effect of the oxygen deficiency and vacancy ordering on the superconducting and magnetic properties of various superconductors.
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C.-C. Chen,1,2 M. Sentef,1 Y. F. Kung,1,3 C. J. Jia,1,4 R. Thomale,3,5,6 B. Moritz,1,7,8 A. P. Kampf,9 and T. P. Devereaux1 1Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA 2Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA 3Department of Physics, Stanford University, Stanford, Californi...
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The compressive behaviors of several high T, and related phases in the Ba-R-Cu-0 system (where R is yttrium and lanthanides) and in the Ba-Hg-Cu-0 system were investigated by using a diamond anvil high pressure cell and energy dispersive x-ray powder diffraction. The pressure dependence of the cell volume of the orthorhombic BazYCu306+, and BaLuzCuOs, and the tetragonal BaNdzCuOs phases were fo...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 1991
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.7.supple_1207