Comparison of resonant inelastic x-ray scattering spectra and dielectric loss functions in copper oxides

被引:14
|
作者
Kim, Jungho [1 ]
Ellis, D. S. [1 ]
Zhang, H. [1 ]
Kim, Young-June [1 ]
Hill, J. P. [2 ]
Chou, F. C. [3 ]
Gog, T. [4 ]
Casa, D. [4 ]
机构
[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[2] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA
[3] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA
[4] Argonne Natl Lab, XOR, Adv Photon Source, Argonne, IL 60439 USA
基金
加拿大自然科学与工程研究理事会;
关键词
bismuth compounds; copper compounds; dielectric losses; ellipsometry; lanthanum compounds; strontium compounds; X-ray scattering; ELECTRONIC-STRUCTURE; EXCITATIONS; SPECTROSCOPY; DEPENDENCE;
D O I
10.1103/PhysRevB.79.094525
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report empirical comparisons of Cu K-edge indirect resonant inelastic x-ray scattering (RIXS) spectra, taken at the Brillouin-zone center, with optical dielectric loss functions measured in a number of copper oxides. The RIXS data are obtained for Bi2CuO4, CuGeO3, Sr2Cu3O4Cl2, La2CuO4, and Sr2CuO2Cl2, and analyzed by considering both incident and scattered-photon resonances. An incident-energy-independent response function is then extracted. The dielectric loss functions, measured with spectroscopic ellipsometry, agree well with this RIXS response, especially in Bi2CuO4 and CuGeO3.
引用
收藏
页数:5
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