RAMAN STUDIES OF GRAPHITE LATTICE-DISORDERING KINETICS UNDER LOW-ENERGY HE-ION IRRADIATION

被引：20

作者：

NAKAMURA, K

KITAJIMA, M

机构：

[1] Second Research Group, Tsukuba Laboratories, National Research Institute for Metals, Tsukuba-shi, Ibaraki-ken 305

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.45.5672

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present real-time Raman measurements of graphite under low-energy He-ion irradiation and discuss an ion-mass effect on the lattice-disordering kinetics by comparing with previous measurements under Ar-ion irradiation. The reciprocal of the phonon correlation length in the damaged layers is proportional to the square root of the irradiation time, and its rate is about 1/3 that for Ar-ion irradiation. The square-root dependence is explained in terms of a reduction of the in-plane phonon correlation length and the quasi-two-dimensional structure of graphite.

引用

页码：5672 / 5674

页数：3

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