Anomalous ion accelerated bulk diffusion of interstitial nitrogen - art. no. 065901

被引：49

作者：

Abrasonis, G

Möller, W

Ma, XX

机构：

[1] Forschungszentrum Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.96.065901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Interstitial N diffusion under low energy (similar to 700 eV) Ar+ bombardment at 673 K in ion beam nitrided austenitic stainless steel is investigated. Ar+ ion bombardment increases the N mobility in depths far beyond the ion penetration depth, resulting in an increased broadening of the N depth profile as a function of Ar+ flux. This effect cannot be explained by any established mechanism of radiation-enhanced diffusion. An explanation based on quasiparticle-enhanced mobility is proposed.

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页数：4

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