1/60 Sec. Time-Resolved High-Resolution Electron Microscopy of Surface-Diffusion of Tungsten Atoms on MgO (001) Surfaces
Keyword(s):
AbstractSurface diffusion process of tungsten(W)-atoms on MgO (001) surfaces was studied by high-resolution electron microscopy (HREM) in the time resolution of 1/60 s. The W-atoms were prepared on single crystalline MgO (001) films at 300°C by vacuumdeposition of WO3 or W-metal. Analysis of the recorded images revealed individual jump-process of the W-atoms in the substrate temperature from R.T. to 400°C, and gave the barrier potential (Ed) and the pre-exponential factor (D0). The diffusion processes on terraces and along steps were also compared in viewpoint of the jump length.
1996 ◽
Vol 45
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pp. 113-118
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1996 ◽
Vol 54
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pp. 672-673
1996 ◽
Vol 54
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pp. 978-979
1997 ◽
Vol 46
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pp. 151-160
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1996 ◽
Vol 54
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pp. 980-981
1996 ◽
Vol 03
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pp. 955-959
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1996 ◽
Vol 54
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pp. 380-381