Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)

doi:10.1088/1674-1056/19/6/066801

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 66801-066801.doi: 10.1088/1674-1056/19/6/066801

Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)

吴黎黎, 吴锋民

College of Mathematics and Physics, Information Engineering, Zhejiang Normal University, Jinhua 321004, China

收稿日期:2009-09-01 出版日期:2010-06-15 发布日期:2010-06-15
基金资助:
Project supported by the Natural Science Foundation for Young Scientists of Zhejiang Province of China (Grant No.~RC02069).

Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)

Wu Li-Li(吴黎黎)^† and Wu Feng-Min(吴锋民)

College of Mathematics and Physics, Information Engineering, Zhejiang Normal University, Jinhua 321004, China

Received:2009-09-01 Online:2010-06-15 Published:2010-06-15
Supported by:
Project supported by the Natural Science Foundation for Young Scientists of Zhejiang Province of China (Grant No.~RC02069).

摘要/Abstract

摘要： A kinetic Monte Carlo simulation is performed in order to study the effect of Sb atoms as a surfactant on the growth of Ag on Ag(111). In our model the repulsive mechanism in which the surfactant Sb atoms repel diffusing Ag adatoms, and the exchange mechanism between Ag and Sb atoms, are considered. Our simulations show that the effects of Sb atoms for Ag/Ag(111) growth system are mainly to increase the chances for Ag atoms to overcome the Ehrlich--Schwoebel barrier both in the interlayer growth and along the edge diffusion. The influence of the coverage of Sb atoms and substrate temperature on the growth of Ag/Sb/Ag(111) is discussed.

Abstract: A kinetic Monte Carlo simulation is performed in order to study the effect of Sb atoms as a surfactant on the growth of Ag on Ag(111). In our model the repulsive mechanism in which the surfactant Sb atoms repel diffusing Ag adatoms, and the exchange mechanism between Ag and Sb atoms, are considered. Our simulations show that the effects of Sb atoms for Ag/Ag(111) growth system are mainly to increase the chances for Ag atoms to overcome the Ehrlich--Schwoebel barrier both in the interlayer growth and along the edge diffusion. The influence of the coverage of Sb atoms and substrate temperature on the growth of Ag/Sb/Ag(111) is discussed.

Key words: surfactant, repulsive, exchange, Monte Carlo simulation

中图分类号: (Statistical mechanics of adsorbates)

68.43.De

68.55.A- (Nucleation and growth) 61.43.Bn (Structural modeling: serial-addition models, computer simulation) 68.35.B- (Structure of clean surfaces (and surface reconstruction))

吴黎黎, 吴锋民. Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)[J]. 中国物理B, 2010, 19(6): 66801-066801.

Wu Li-Li(吴黎黎) and Wu Feng-Min(吴锋民). Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)[J]. Chin. Phys. B, 2010, 19(6): 66801-066801.

参考文献 22

[1]	Vegt H A V, Pinxteren H M V, Lohmeier, Vlieg M E and Thorton J M C 1992 Phys. Rev. Lett. 68 3335
[2]	Vrijmoeth J, Vegt H A V, Meger J A, Vlieg E and Behm R J 1994 Phys. Rev. Lett. 72 3843
[3]	Savrina O, Vincenzo F and Matthias S 1993 Phys. Rev. Lett. 71 2437
[4]	Stefani E, Michael H, Thomas M and George C 1994 Phys. Rev. Lett. 72 158
[5]	Wulfhekel W, Lipkin N N and Lliewer J 1996 Surf. Sci. 348 227
[6]	Vegt H A V, Breeman M, Ferrer S, Etgens V H, Torrelles X, Fajardo P and Vlieg E 1995 Phys. Rev. B 51 14806
[7]	Meyer J A, Vrijmeoth J, Vegt H A V, Vlieg E and Behm R J 1995 Phys. Rev. B 51 14790
[8]	Jiang M, Zhao Y J and Cao P L 1998 Phys. Rev. B 57 10054
[9]	Georg R, Roland S, Christian T, Bene P and Geoge C 1993 Phys. Rev. Lett. 71 895
[10]	Zhang Z Y and Lagally Max G 1994 Phys. Rev. Lett. 72 693
[12]	Liu B G, Wu J and Wang E G 1999 Phys. Rev. Lett. 83 1195
[13]	Wu J, Liu B G, Zhang Z Y and Wang E G 2000 Phys. Rev. B 61 13212
[14]	Liliana G and Julio F 2001 Phys. Rev. B 64 033409
[15]	Wang D M, Ding Z J and Xia S 2005 Phys. Rev. B 72 115419
[16]	Cox E, Li M, Chung P W, Ghosh C, Rahman J, Evans J W and Thiel P A 2005 Phys. Rev. B 71 115414
[17]	Wu F M, Lu H J, Fang Y Z and Huang S H 2007 Chin. Phys. 16 3029
[18]	Schwoebel R L 1969 J. Appl. Phys. 40 614
[19]	Ehrlich G and Hudda F 1966 J. Chem. Phys. 44 1039
[20]	Wu F M, Lu H J and Wu Z Q 2006 Chin. Phys. 15 807
[21]	Lu H J and Wu F M 2006 Acta Phys. Sin. 55 424 (in Chinese)
[22]	Smileuer P, Wilby M R and Vvedensky D D 1993 Phys. Rev. B 47 4119

Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)

Simulation of surfactant effect on growth of metal homoexpitaxial Sb－Ag/Ag(111)

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