An atomistic view of structural and electronic properties of rare earth ensembles on Si(0 0 1) substrates
作者： Aniketa Shinde , Juexian Cao , Sangyeob Lee , Ruqian Wu , Regina Ragan
DOI: 10.1016/J.CPLETT.2008.10.040
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摘要: Abstract Synergistic experimental and theoretical studies of low coverage adsorption geometries rare earth adatoms on Si(0 0 1) were performed. Density functional calculations showed charge transfer from to explained observed bias dependence in scanning tunneling microscopy images. Comparison STM simulations with empty states data revealed a direct correlation between surface reconstructions; the (4 × 8) reconstruction is precursor (2 × 4) reconstruction. Charge adatom substrate was also confirmed by Kelvin probe force microscopy; contact potential difference measurements Dy/Si(0 0 1) reveal 0.28 eV higher than that (2 × 1) reconstructed Si.
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sci-hub.se 参考文章(26)
Wolfgang Schattke, Michael A. Van Hove, Solid-state photoemission and related methods : theory and experiment Wiley-VCH. ,(2003)
L. Magaud, J. Y. Veuillen, D. Lollman, T. A. Nguyen Tan, D. A. Papaconstantopoulos, M. J. Mehl, Electronic structure of ErSi2 and YSi2. Physical Review B. ,vol. 46, pp. 1299- 1304 ,(1992) , 10.1103/PHYSREVB.46.1299
Winfried Mönch, Semiconductor surfaces and interfaces Published in <b>1995</b> in Berlin by Springer. ,(1993) , 10.1007/978-3-662-02882-7
Aniketa Shinde, Juexian Cao, Ruqian Wu, Regina Ragan, Structural Understanding of Self-Assembled Rare Earth Disilicide Nanostructures Via Scanning Probe Microscopy and First Principles Studies Israel Journal of Chemistry. ,vol. 48, pp. 73- 79 ,(2008) , 10.1560/IJC.48.2.73
C. Preinesberger, G. Pruskil, S. K. Becker, M. Dähne, D. V. Vyalikh, S. L. Molodtsov, C. Laubschat, F. Schiller, Structure and electronic properties of dysprosium-silicide nanowires on vicinal Si"001… Applied Physics Letters. ,vol. 87, pp. 083107- ,(2005) , 10.1063/1.2032620
Yong Chen, Douglas A. A. Ohlberg, Gilberto Medeiros-Ribeiro, Y. Austin Chang, R. Stanley Williams, Self-assembled growth of epitaxial erbium disilicide nanowires on silicon (001) Applied Physics Letters. ,vol. 76, pp. 4004- 4006 ,(2000) , 10.1063/1.126848
G. Kresse, D. Joubert, From ultrasoft pseudopotentials to the projector augmented-wave method Physical Review B. ,vol. 59, pp. 1758- 1775 ,(1999) , 10.1103/PHYSREVB.59.1758
Jianshu Yang, Qun Cai, X.-D. Wang, R. Koch, Initial stages of erbium disilicide formation on Si( 0 0 1 ) Surface Science. ,vol. 526, pp. 291- 296 ,(2003) , 10.1016/S0039-6028(02)02549-9
C Preinesberger, S Vandré, T Kalka, M Dähne-Prietsch, Formation of dysprosium silicide wires on Si(001) Journal of Physics D. ,vol. 31, ,(1998) , 10.1088/0022-3727/31/12/001
B.Z. Liu, J. Nogami, An STM study of the Si(0 0 1)(2×4)-Dy surface Surface Science. ,vol. 488, pp. 399- 405 ,(2001) , 10.1016/S0039-6028(01)01159-1