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We investigate the scanning tunneling microscopy (STM) tip-modulated atomic motion on the top of Co island and interlayer mass transport on the island edge based on the molecular static (MS) method. Our results show that STM manipulation has an important effect on Co atomic diffusion on the top of Co island and on the island edge. The interaction of the STM tip with the adatom and the strong shape transitions in Co island and in the Cu(001) substrate result in the change of the jump diffusion barrier on the top of the island, the Ehrlich-Schwoebel(E-S) and exchange barrier on the island edge. It is found that by adjusting the distance between the tip and the substrate one can reduce the diffusion barrier of the above three diffusion processes and transform the growth mode of the Co films from 3D to 2D.
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Keywords:
- scanning tunneling microscopy /
- atomic motion /
- mass transport
[1] Zhang Z, Lagally M G 1997 Science 276 377
[2] [3] Stepanyuk V S, Bazhanov D I, Baranov A N, Hergert W, Dederichs P H, Kirschner J 2000 Phys. Rev. B 62 15398
[4] [5] Eigler D M, Schweizer E K 1990 Nature 344 524
[6] Zhang H G, Mao J H, Liu Q, Jiang N, Zhou H T, Guo H M, Shi D X, Gao H J 2010 Chin. Phys. B 19 018105
[7] [8] [9] Hla S W, Braun K F, Wassermann B, Rieder K H 2004 Phys. Rev. Lett. 93 208302 Bartels L, Meyer G, Rieder K H 1997 Appl. Phys. Lett. 71 213
[10] Oyabu N, Custance O, Yi I, Sugawara Y, Morita S 2003 Phys. Rev. Lett. 90 176102
[11] [12] Krpick U, Rahman T S 1999 Phys. Rev. Lett. 83 2765
[13] [14] [15] Dujardin G, Mayne A, Robert O, Rose F, Joachim C, Tang H 1998 Phys. Rev. Lett. 80 3085
[16] Huang R Z, Stepanyuk V S, Kirschner J 2008 New J. Physics 10 083044
[17] [18] Levanov N A, Stepanyuk V S, Hergert W, Bazhanov D I, Dederichs P H, Katsnelson A A, Massobrio C 2000 Phys. Rev. B 61 2230
[19] [20] Huang R Z, Stepanyuk V S, Kirschner J 2006 J. Phys.: Condens. Matter 18 L217
[21] [22] [23] Wildberger K, Stepanyuk V S, Lang P, Zeller R, Dederichs P H 1995 Phys. Rev. Lett. 75 509
[24] Stepanyuk V S, Klavsyuk A L, Niebergall L, Saletsky A M, Hergert W, Bruno P 2005 Phase Transit. 78 61
[25] [26] [27] Cleri F, Rosato V 1993 Phys. Rev. B 48 22
[28] Rosato V, Guillope B, Legrand B 1989 Phil. Mag. A 59 321
[29] [30] Stepanyuk V S, Klavsyuk A L, Hergert W, Saletsky A M, Bruno P, Mertig I 2004 Phys. Rev. B 70 195420
[31] [32] [33] Sastry K, Johnson D D, Goldberg D E, Bellon P 2005 Phys. Rev. B 72 085438
[34] [35] Ju S P, Lo Y C, Sun S J, Chang J G 2005 J. Phys. Chem. B 109 20805
[36] [37] Yu B D, Scheffler M 1997 Phys. Rev. B 56 R15569
[38] Stepanyuk V S, Bazhanov D I, Hergert W, Kirschner J 2001 Phys. Rev. B 63 153406
[39] -
[1] Zhang Z, Lagally M G 1997 Science 276 377
[2] [3] Stepanyuk V S, Bazhanov D I, Baranov A N, Hergert W, Dederichs P H, Kirschner J 2000 Phys. Rev. B 62 15398
[4] [5] Eigler D M, Schweizer E K 1990 Nature 344 524
[6] Zhang H G, Mao J H, Liu Q, Jiang N, Zhou H T, Guo H M, Shi D X, Gao H J 2010 Chin. Phys. B 19 018105
[7] [8] [9] Hla S W, Braun K F, Wassermann B, Rieder K H 2004 Phys. Rev. Lett. 93 208302 Bartels L, Meyer G, Rieder K H 1997 Appl. Phys. Lett. 71 213
[10] Oyabu N, Custance O, Yi I, Sugawara Y, Morita S 2003 Phys. Rev. Lett. 90 176102
[11] [12] Krpick U, Rahman T S 1999 Phys. Rev. Lett. 83 2765
[13] [14] [15] Dujardin G, Mayne A, Robert O, Rose F, Joachim C, Tang H 1998 Phys. Rev. Lett. 80 3085
[16] Huang R Z, Stepanyuk V S, Kirschner J 2008 New J. Physics 10 083044
[17] [18] Levanov N A, Stepanyuk V S, Hergert W, Bazhanov D I, Dederichs P H, Katsnelson A A, Massobrio C 2000 Phys. Rev. B 61 2230
[19] [20] Huang R Z, Stepanyuk V S, Kirschner J 2006 J. Phys.: Condens. Matter 18 L217
[21] [22] [23] Wildberger K, Stepanyuk V S, Lang P, Zeller R, Dederichs P H 1995 Phys. Rev. Lett. 75 509
[24] Stepanyuk V S, Klavsyuk A L, Niebergall L, Saletsky A M, Hergert W, Bruno P 2005 Phase Transit. 78 61
[25] [26] [27] Cleri F, Rosato V 1993 Phys. Rev. B 48 22
[28] Rosato V, Guillope B, Legrand B 1989 Phil. Mag. A 59 321
[29] [30] Stepanyuk V S, Klavsyuk A L, Hergert W, Saletsky A M, Bruno P, Mertig I 2004 Phys. Rev. B 70 195420
[31] [32] [33] Sastry K, Johnson D D, Goldberg D E, Bellon P 2005 Phys. Rev. B 72 085438
[34] [35] Ju S P, Lo Y C, Sun S J, Chang J G 2005 J. Phys. Chem. B 109 20805
[36] [37] Yu B D, Scheffler M 1997 Phys. Rev. B 56 R15569
[38] Stepanyuk V S, Bazhanov D I, Hergert W, Kirschner J 2001 Phys. Rev. B 63 153406
[39]
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