A theoretical study of the (2*1) reconstruction of Si(100): application to surface-induced core level shifts

作者: T Vinchon , D Spanjaard , M C Desjonqueres

DOI: 10.1088/0953-8984/4/22/006

关键词:

摘要: The tight-binding method is used to study the (2*1) reconstruction of Si(100) surface. laws variation with interatomic distance Slater-Koster parameters and pairwise repulsion energy are defined in order give a good description electronic band structure elastic properties bulk silicon. necessity taking into account, during total minimization, surface-induced atomic level shifts emphasized. dimer bond length shown be agreement experimental values. Then, related core shifts. A new interpretation photoemission spectra, consistent weak asymmetry dimers, finally proposed.

参考文章(34)
K. C. Pandey, J. C. Phillips, Realistic Tight-Binding Calculations of Surface States of Si and Ge (111) Physical Review Letters. ,vol. 32, pp. 1433- 1436 ,(1974) , 10.1103/PHYSREVLETT.32.1433
E. Artacho, Félix Ynduráin, Proposal for symmetric dimers at the Si(100)-2×1 surface Physical Review Letters. ,vol. 62, pp. 2491- 2494 ,(1989) , 10.1103/PHYSREVLETT.62.2491
R. M. Tromp, R. J. Hamers, J. E. Demuth, Si(001) Dimer Structure Observed with Scanning Tunneling Microscopy Physical Review Letters. ,vol. 55, pp. 1303- 1306 ,(1985) , 10.1103/PHYSREVLETT.55.1303
W. S. Yang, F. Jona, P. M. Marcus, Atomic structure of Si{001}2×1 Physical Review B. ,vol. 28, pp. 2049- 2059 ,(1983) , 10.1103/PHYSREVB.28.2049
D. J. Chadi, Si(100) surfaces: Atomic and electronic structures Journal of Vacuum Science and Technology. ,vol. 16, pp. 1290- 1296 ,(1979) , 10.1116/1.570143
G. Wolfgarten, P. Krüger, J. Pollmann, Self-consistent scattering theoretical method for surfaces: Application to Si(100) Solid State Communications. ,vol. 54, pp. 839- 842 ,(1985) , 10.1016/0038-1098(85)90298-4
R.J. Hamers, R.M. Tromp, J.E. Demuth, Electronic and geometric structure of Si(111)-(7 × 7) and Si(001) surfaces Surface Science. ,vol. 181, pp. 346- 355 ,(1987) , 10.1016/0039-6028(87)90176-2
Reinhart Ahlrichs, Theoretical study of the H 5 + system Theoretical Chemistry Accounts. ,vol. 39, pp. 149- 160 ,(1975) , 10.1007/BF00550317
L. S. O. Johansson, R. I. G. Uhrberg, P. Mårtensson, G. V. Hansson, Surface-state band structure of the Si(100)2×1 surface studied with polarization-dependent angle-resolved photoemission on single-domain surfaces Physical Review B. ,vol. 42, pp. 1305- 1315 ,(1990) , 10.1103/PHYSREVB.42.1305