Temperature dependence of the pre-edge structure in the Ti K-edge x-ray absorption spectrum of rutile

被引:20
作者
Durmeyer, O. [1 ]
Beaurepaire, E. [1 ]
Kappler, J-P [1 ]
Brouder, Ch [2 ,3 ]
Baudelet, F. [4 ]
机构
[1] CNRS, UMR 7504, ULP, IPCMS, F-67034 Strasbourg 2, France
[2] Univ Paris 06, CNRS, UMR 7590, Inst Mineral & Phys Milieux Condenses,IPGP, F-75015 Paris, France
[3] Univ Paris 07, CNRS, UMR 7590, Inst Mineral & Phys Milieux Condenses,IPGP, F-75015 Paris, France
[4] Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France
关键词
TRANSITION-METAL COMPOUNDS; VIBRATIONAL FINE-STRUCTURE; DEBYE-WALLER FACTORS; LATTICE-DYNAMICS; ATOMIC-STRUCTURE; LOCAL-STRUCTURE; NEUTRON-DIFFRACTION; ELECTRONIC-SPECTRA; PHASE-TRANSITIONS; POLARIZED XAFS;
D O I
10.1088/0953-8984/22/12/125504
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The temperature dependence of the pre-edge features in x-ray absorption spectroscopy is reviewed. Then, the temperature dependence of the pre-edge structure at the K-edge of titanium in rutile TiO2 is measured at low and room temperature. The first two peaks grow with temperature. The fact that these two peaks also correspond to electric quadrupole transitions is explained by a recently proposed theory.
引用
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页数:6
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