INVESTIGATION OF SURFACE-DIFFUSION OF HF ON W(100) BY THE DENSITY FLUCTUATION METHOD

Authors
BEBEN J GUBERNATOR W
Citation
J. Beben et W. Gubernator, INVESTIGATION OF SURFACE-DIFFUSION OF HF ON W(100) BY THE DENSITY FLUCTUATION METHOD, Surface science, 304(1-2), 1994, pp. 59-64
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
304
Issue
1-2
Year of publication
1994
Pages
59 - 64
Database
ISI
SICI code
0039-6028(1994)304:1-2<59:IOSOHO>2.0.ZU;2-P
Abstract
Surface diffusion of hafnium deposited in ultrahigh vacuum onto a micr ocrystal of tungsten was investigated using the field emission method of density fluctuations. Surface diffusion coefficients were determine d by analysis of the experimental time autocorrelation functions measu red in the temperature range 370-470 K. Values of the activation energ y for the surface diffusion of Hf on W, 0.53 and 0.54 eV were obtained for two series of measurements performed under similar conditions of deposition of Hf submonolayers.