Lattice Disordering and Its Thermal Relaxation of Graphite
Lattice Disordering and Its Thermal Relaxation of Graphite
复制标题
石墨的晶格无序及其热弛豫
DOI：
10.7209/tanso.1995.47
复制
发表时间：
1995
期刊：
影响因子：
10.9
通讯作者：
K. Nakamura
中科院分区：
文献类型：
--
作者：
M. Kitajima;E. Asari;K. Nakamura
日本茨城筑波森源1-2-1中村和隆金属研究所的晶格无序及其热弛豫用实时拉曼光谱研究了离子辐照下石墨晶格无序及其热重还原反应的动力学新结果。随时间变化的观察表明，在离子辐照下，石墨的结构发生了短暂的变化。通过离子辐照产生的缺陷导致声子关联长度的缩短，解释了辐照早期的晶格无序。考虑缺陷湮没过程，讨论了晶格无序的热弛豫速率。
Lattice Disordering and Its Thermal Relaxation of Graphite Masahiro Kitajima, Eiji Asari* and Kazutaka G. Nakamura National Research Institute for Metals, 1-2-1 Sengen, Tsukuba, Ibaraki 305, Japan We describe new results of kinetic study on lattice disorder and its thermal realxation of graphite under ion irradiation, using real-time Raman measurements. Time dependent observation reveals a transient strucural change in graphite under ion irradaition. Lattice disorder in an early stage of irradiation is expalined in terms of a reduction in the phonon correlation length due to defects produced by ion irradiation. Thermal-relaxation rate of the lattice disorder is also discussed, considering defect annihilation processes.