Phenomenology of the effect of ion irradiation on the work function of metals

被引：8

作者：

Horvath, Akos ^{[1
]}

Nagy, Norbert ^{[1
]}

Vertesy, Gabor ^{[1
]}

Schiller, Robert ^{[1
]}

机构：

[1] Ctr Energy Res, POB 49, H-1525 Budapest, Hungary

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2020年 / 466卷

关键词：

Electron work function; Simple metals; Ion irradiation; Wigner-Seitz radius; Annealing; MECHANICAL-PROPERTIES; DAMAGE; TEMPERATURE; SIMULATION;

D O I：

10.1016/j.nimb.2020.01.004

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Polycrystalline Al and Zn samples were irradiated with 30 keV Ar+ ions at room temperature and the changes of their electron work functions, (1) were measured by the Kelvin method. Similarly to what was earlier experienced with stainless steel the changes of (1) as a function of displacement per atom (DPA) were seen to be of extremal character. This can be considered as a manifestation of competing formation and annealing of displacements. Comparing the Lang-Kohn theory of work function with the present experimental results the changes of the Wigner-Seitz radii were evaluated. A differential law for the dependence of the Wigner-Seitz radius on DPA is proposed.

引用

页码：12 / 16

页数：5

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