Evolution of two-dimensional wormlike nanoclusters on metal surfaces

被引:43
作者
Pai, WW
Wendelken, JF
Stoldt, CR
Thiel, PA
Evans, JW
Liu, DJ
机构
[1] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA
[3] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan
[4] Iowa State Univ Sci & Technol, Dept Chem, Ames, IA 50011 USA
[5] Iowa State Univ Sci & Technol, Dept Math, Ames, IA 50011 USA
[6] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA
关键词
D O I
10.1103/PhysRevLett.86.3088
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A pinch-off phenomenon is discovered in the evolution of 2D wormlike nanoclusters formed in homoepitaxial adlayers. This feature is shown to distinguish mass transport via periphery diffusion from other mechanisms. Continuum modeling of such evolution accurately describes experimental observations, particularly if one incorporates the anisotropy in step-edge line tension.
引用
收藏
页码:3088 / 3091
页数:4
相关论文
共 25 条
[1]  
BARTELT MC, 1993, MATER RES SOC SYMP P, V312, P255, DOI 10.1557/PROC-312-255
[2]   Self-diffusion of adatoms, dimers, and vacancies on Cu(100) [J].
Boisvert, G ;
Lewis, LJ .
PHYSICAL REVIEW B, 1997, 56 (12) :7643-7655
[3]   Evolution of far-from-equilibrium nanostructures on Ag(100) surfaces: Protrusions and indentations at extended step edges [J].
Cadilhe, AM ;
Stoldt, CR ;
Jenks, CJ ;
Thiel, PA ;
Evans, JW .
PHYSICAL REVIEW B, 2000, 61 (07) :4910-4925
[4]   Nonlinear dynamics and breakup of free-surface flows [J].
Eggers, J .
REVIEWS OF MODERN PHYSICS, 1997, 69 (03) :865-929
[5]   Coalescence of spheres by surface diffusion [J].
Eggers, J .
PHYSICAL REVIEW LETTERS, 1998, 80 (12) :2634-2637
[6]   Dynamics of vacancy island coalescence on Ag(111) [J].
Esser, M ;
Morgenstern, K ;
Rosenfeld, G ;
Comsa, G .
SURFACE SCIENCE, 1998, 402 (1-3) :341-345
[7]   Equilibrium fluctuations and decay of step bumps on vicinal Cu(111) surfaces [J].
Giesen, M ;
Icking-Konert, GS .
SURFACE SCIENCE, 1998, 412-13 :645-656
[8]   TIME FLUCTUATIONS OF STEPS ON CU(11N) SURFACES INVESTIGATED BY TEMPERATURE VARIABLE TUNNELING MICROSCOPY [J].
GIESENSEIBERT, M ;
SCHMITZ, F ;
JENTJENS, R ;
IBACH, H .
SURFACE SCIENCE, 1995, 329 (1-2) :47-60
[9]  
GRAYSON MA, 1987, J DIFFER GEOM, V26, P285
[10]  
Herring C., 1952, STRUCTURE PROPERTIES, P117