LINEARLY POLARIZED CU L3-EDGE X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8
作者： A. Bianconi , S. Della Longa , C. Li , M. Pompa , A. Congiu-Castellano
DOI: 10.1103/PHYSREVB.44.10126
关键词: Inorganic compound 、 Continuum (set theory) 、 Condensed matter physics 、 Electronic band structure 、 Excited state 、 XANES 、 Electronic structure 、 Physics 、 Bound state 、 Crystallography 、 Oscillator strength
摘要: The linearly polarized Cu {ital L}{sub 3}-edge x-ray-absorption near-edge structure (XANES) of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} has been measured and the spectra are interpreted by full multiple-scattering approach in real space. over a range 20 eV can be predicted terms one-electron dipole ({Delta}{ital l}=+1) transition 2{ital p}{r arrow}{epsilon}{ital d}, probing unoccupied d}-like ({ital l}=2) density states projected on site with orbital angular momentum m}{sub l}}=0, 1 {bold E}( ){ital z} spectra, l}}=2, 1, 0 E}{perpendicular}{ital c} spectra. oscillator strength for allowed transitions l}={minus}1) arrow}{var epsilon}{ital s} is shown to factor 100 weaker than arrow}3{ital d} transitions. Coulomb interaction final state between p} core hole excited 3{ital electron found 5.5 forming bound below continuum threshold, well-known 3} white line. On contrary, induces nearly rigid redshift about high-energy conduction bands.
harvard.edu
sci-hub.se 参考文章(47)
J. G. Bednorz, K. A. M�ller, Possible high Tc superconductivity in the Ba-La-Cu-O system European Physical Journal B. ,vol. 64, pp. 189- 193 ,(1986) , 10.1007/BF01303701
J. Georg Bednorz, K. Alex Müller, Perovskite-type oxides—The new approach to high- T c superconductivity Reviews of Modern Physics. ,vol. 60, pp. 585- 600 ,(1988) , 10.1103/REVMODPHYS.60.585
Warren E. Pickett, Electronic structure of the high-temperature oxide superconductors Reviews of Modern Physics. ,vol. 61, pp. 433- 512 ,(1989) , 10.1103/REVMODPHYS.61.433
Klaus Yvon, Michel Fran�ois, Crystal structures of high-T c oxides Zeitschrift f�r Physik B Condensed Matter. ,vol. 76, pp. 413- 444 ,(1989) , 10.1007/BF01307892
K. B. Garg, A. Bianconi, S. Della Longa, A. Clozza, M. De Santis, A. Marcelli, Multiple-scattering analysis ofK-edge x-ray-absorption near-edge spectrum of YBa2Cu3O7 Physical Review B. ,vol. 38, pp. 244- 251 ,(1988) , 10.1103/PHYSREVB.38.244
J. Guo, D. E. Ellis, G. L. Goodman, E. E. Alp, L. Soderholm, G. K. Shenoy, Theoretical calculations of x-ray-absorption spectra of copper in La2CuO4 and related oxide compounds. Physical Review B. ,vol. 41, pp. 82- 95 ,(1990) , 10.1103/PHYSREVB.41.82
Antonio Bianconi, Chenxi Li, Francesco Campanella, Stefano Della Longa, Ida Pettiti, Margherita Pompa, Simonetta Turtù, Dominique Udron, Cu K-edge polarized x-ray-absorption near-edge structure of Bi2CaSr2Cu2O8. Physical Review B. ,vol. 44, pp. 4560- 4569 ,(1991) , 10.1103/PHYSREVB.44.4560
A. Bianconi, A.Congiu Castellano, M. De Santis, P. Rudolf, P. Lagarde, A.M. Flank, A. Marcelli, L2,3 XANES of the High Tc Superconductor YBa2Cu3O~7 with Variable Oxygen Content Solid State Communications. ,vol. 63, pp. 1009- 1013 ,(1987) , 10.1016/0038-1098(87)90650-8
A. Bianconi, J. Budnick, A.M. Flank, A. Fontaine, P. Lagarde, A. Marcelli, H. Tolentino, B. Chamberland, C. Michel, B. Raveau, G. Demazeau, Evidence of 3d9-ligand hole states in the superconductor La1.85Sr0.15CuO4 from L3 X-ray absorption spectroscopy Physics Letters A. ,vol. 127, pp. 285- 291 ,(1988) , 10.1016/0375-9601(88)90698-6
D. D. Sarma, O. Strebel, C. T. Simmons, U. Neukirch, G. Kaindl, R. Hoppe, H. P. Müller, Electronic structure of high-T c superconductors from soft-x-ray absorption Physical Review B. ,vol. 37, pp. 9784- 9787 ,(1988) , 10.1103/PHYSREVB.37.9784