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发表于 2025-3-25 07:16:10
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审问,审讯
发表于 2025-3-25 07:41:53
An Introduction to Surface Diffusion Measurementsffusion, different coefficients (i.e. tracer vs. collective) are defined, how diffusion currents are generated (i.e. from equilibrium or non-equilibrium driving forces) is discussed and the relation between atomistic and collective processes measured in different experiments is emphasized. A table l
antiandrogen
发表于 2025-3-25 15:02:36
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mortgage
发表于 2025-3-25 16:30:21
Surface Diffusion of Metal Atoms and Clusters Directly Observedal surfaces was sparse. Since then, such investigations have become widespread, and the importance of this information in understanding more macroscopic phenomena, such as sintering and crystal growth, is widely recognized. It therefore seems appropriate to briefly summarize some of the things learn
苍白
发表于 2025-3-25 21:39:01
Effects of Lattice Steps on Diffusion and Epitaxial Growthor surface atoms. The behavior of atoms at and near step edges plays an important role in epitaxial growth and surface morphology of thin films and also the dynamic behavior of the surface at elevated temperature. We will discuss how atoms move and bind at step edges, how atoms can diffuse across an
制造
发表于 2025-3-26 03:09:13
Atomic Mobility of Ag and Fe on the Ag(100) Surface temperature for Ag adatom diffusion on Ag(100) to be 160(5) K. From this value we estimated the activation energy barrier for self-diffusion on Ag(100) to be 0.40(5) eV. Single Fe adatoms on the Ag(100) surface were found to exchange site with Ag atoms from the first layer, starting at a temperatur
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发表于 2025-3-26 07:57:30
Comparison of Diffusion Processes of Cu and Au Adatoms on the Cu(111) Surface by Molecular Dynamicsfew years. From these studies it was determined that the copper adatoms on the Cu(111) face diffuse more easily, compared to the other two low index faces, while a rather large discrepancy exists concerning the values of the migration energy, ΔE., needed for the self-diffusion of the adatoms. In sta
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发表于 2025-3-26 10:41:28
An Introduction to Surface Diffusion Measurementsum driving forces) is discussed and the relation between atomistic and collective processes measured in different experiments is emphasized. A table listing the currently used methods to study surface diffusion is presented.
Proponent
发表于 2025-3-26 14:57:28
A Local View of Bonding and Diffusion at Metal Surfacesral examples are reviewed, including outer-layer relaxations of clean hcp(0001) surfaces, liquid-metal-embrittlement energetics, separation energies of metal-adatom dimers, concerted substitutional self-diffusion on fcc(001) surfaces, and adsorption and diffusion barrier sites for adatoms near steps.
Extricate
发表于 2025-3-26 20:11:18
Surface Diffusion of Metal Atoms and Clusters Directly Observedic phenomena, such as sintering and crystal growth, is widely recognized. It therefore seems appropriate to briefly summarize some of the things learned in single atom studies on metal surfaces, as well as to highlight recent developments and trends.