Self-Diffusion of Tungsten on Some Facets of Tungsten Microcrystal

• Authors: T. Biernat , R. Błaszczyszyn
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

79.70.+q; 68.90.+g; 05.40.-a

Discipline

• 79.70.+q: Field emission, ionization, evaporation, and desorption
• 05.40.-a: Fluctuation phenomena, random processes, noise, and Brownian motion(for fluctuations in superconductivity, see 74.40.-n; for statistical theory and fluctuations in nuclear reactions, see 24.60.-k; for fluctuations in plasma, see 52.25.Gj; for nonlinear dynamics and chaos, see 05.45.-a)
• 68.90.+g: Other topics in structure, and nonelectronic properties of surfaces and interfaces; thin films and low-dimensional structures (restricted to new topics in section 68)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: S
• Pages: S-11-S-16

Dates

published

2008-12

Contributors

author

T. Biernat

• Institute of Experimental Physics, University of Wrocław, pl. Maxa Borna 9, 50-204 Wrocław, Poland

author

R. Błaszczyszyn

• Institute of Experimental Physics, University of Wrocław, pl. Maxa Borna 9, 50-204 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.114.S-11