Kinetic Parameters of Pb Obtained from Crystallite Evolutions
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概要
- 論文の詳細を見る
Issues in modeling the evolution of supported crystallites are addressed by fitting scanning tunneling microscopy (STM) measurements of the evolution of Pb crystallites using the formalism of the continuum step model. Initial and final states used in the calculations are the least-stable metastable states for a cylindrically symmetrical crystallite with step–step repulsions varying as the inverse separation squared. The step–step interaction strength is determined from fits to the final shape. The kinetic parameters (terrace diffusion and step detachment rate) are determined by fits to the rate of evolution of individual layers of the crystallite. Using the obtained experimental values, a numerical simulation with a fixed step chemical potential for the boundary condition is performed. The results greatly overestimate the critical slowing down as the crystallite approaches the final state.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-03-15
著者
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Williams Ellen
Department Of Physics And Astronomy University Of Maryland
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Thürmer Konrad
Department of Physics, Materials Research Science and Engineering Center, University of Maryland at College Park, College Park, MD 20742-4111, U.S.A.
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Degawa Masashi
Department of Physics, Materials Research Science and Engineering Center, University of Maryland at College Park, College Park, MD 20742-4111, U.S.A.
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Thurmer Konrad
Department of Physics, Materials Research Science and Engineering Center, University of Maryland at College Park, College Park, MD 20742-4111, U.S.A.
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Williams Ellen
Department of Physics, Materials Research Science and Engineering Center, University of Maryland at College Park, College Park, MD 20742-4111, U.S.A.
関連論文
- Arsenic-Induced Faceting of Vicinal Si(100) (SOLID STATE DEVICES AND MATERIALS 1)
- Kinetic Parameters of Pb Obtained from Crystallite Evolutions