M.C. Reuter, R.M. Tromp
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
The equilibrium shape of a large crystal is uniquely determined by the anisotropic surface energy. In sharp contrast, we show here that the equilibrium shape of a small crystal is not unique, for temperatures below the roughening temperature. Instead, the degree of faceting is an oscillatory function of crystal size. Using low-energy electron microscopy, we observe oscillations in the shape of silver crystallites as they grow; we demonstrate theoretically that such oscillations with size occur even in thermodynamic equilibrium. © 1993 The American Physical Society.
M.C. Reuter, R.M. Tromp
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
S.M. Schramm, A.B. Pang, et al.
Ultramicroscopy
Vasili Perebeinos, J. Tersoff, et al.
Physical Review Letters
J. Tersoff
Applied Physics Letters