Radiation-stimulated surface diffusion of adatoms on a tungsten {321} face

被引：0

作者：

Sadanov, E. V. ^{[1
]}

机构：

[1] Kharkiv Inst Phys & Technol, Natl Sci Ctr, UA-61108 Kharkov, Ukraine

来源：

TECHNICAL PHYSICS LETTERS | 2015年 / 41卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

ION-BOMBARDMENT; EMITTER;

D O I：

10.1134/S1063785015060280

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface erosion of tungsten bombarded with accelerated 5-keV helium atoms has been studied by the method of field-ion microscopy. Radiation-stimulated appearance of adatoms localized in the central region of terraces on the {321} W face has been observed. The distribution of W adatoms on {321} terraces is characterized by the presence of zones free of adatoms in the vicinity of atomic steps. The existence of "empty" zones upon irradiation is evidence of transient surface diffusion. The diffusion path lengths of adatoms on the {321} W face reach six interatomic distances and reveal anisotropy of the radiation-stimulated transient surface diffusion.

引用

页码：571 / 574

页数：4

共 17 条

[1]

Antczak G., 2010, Surface Diffusion: Metal, Metal Atoms, and Clusters

[2] Field-emission microscopy of the surface of an Ir-C-Cs point emitter [J].

Bernatskii, D. P. ;

Pavlov, V. G. .

TECHNICAL PHYSICS LETTERS, 2013, 39 (12) :1031-1033

[3] THEORY OF RIPPLE TOPOGRAPHY INDUCED BY ION-BOMBARDMENT [J].

BRADLEY, RM ;

HARPER, JME .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1988, 6 (04) :2390-2395

[4]

Egorov N. V., 2011, FIELD ELECT EMISSION

[5]

Fursei G. N., 2012, FIELD ELECT EMISSION

[6] Control over the number of local emitting nanodimensional protrusions on the surface of a field emitter [J].

Golubev, O. L. ;

Ivchenko, V. A. .

TECHNICAL PHYSICS LETTERS, 2012, 38 (10) :944-946

[7]

Kirsanov V. V., 1985, RAD DEFECT FORMATION

[8] On the Use of Simulated Field-Evaporated Specimen Apex Shapes in Atom Probe Tomography Data Reconstruction [J].

Larson, David J. ;

Geiser, Brian P. ;

Prosa, Ty J. ;

Kelly, Thomas F. .

MICROSCOPY AND MICROANALYSIS, 2012, 18 (05) :953-963

[9] Morphology of ion-sputtered surfaces [J].

Makeev, MA ;

Cuerno, R ;

Barabási, AL .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 197 (3-4) :185-227

[10] One-dimensional surface damage at grazing projectile incidence: linear vacancy chains on channeled planes [J].

Mazilova, Tatjana I. ;

Sadanov, Evgenij V. ;

Ksenofontov, Vjacheslav A. ;

Mikhailovskij, Igor M. .

SURFACE SCIENCE, 2013, 617 :136-140

← 1 2 →