Self-Diffusion of Tungsten on Some Facets of Tungsten Microcrystal |
| T. Biernat and R. Błaszczyszyn
Institute of Experimental Physics, University of Wrocław, pl. Maxa Borna 9, 50-204 Wrocław, Poland |
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| Received: 16 05 2008 |
| The field emission current fluctuation method was applied to investigate surface self-diffusion of tungsten on the (311) and (711) regions (along the zone line (211)-(100)) of a tungsten microcrystal (in the form of the field emitter tip of radius about 300 nm) in the temperature range 500-850 K. The surface diffusion parameters were obtained from spectral analysis of the current fluctuations. The results are discussed from the aspects of the substrate structure. |
| DOI: 10.12693/APhysPolA.114.S-11 PACS numbers: 79.70.+q, 68.90.+g, 05.40.-a |