期刊
SOLID STATE COMMUNICATIONS
卷 133, 期 7, 页码 465-468出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2004.11.047
关键词
diamond; heat capacity; stable isotopes
We report measurements of the heat capacity C,, of diamond with several isotopic compositions (C-12(1-x) C-13(x)) in the 20 - 280 K temperature range. The results, in particular the derivative of the specific heat with respect to the average isotopic mass, are compared with recent ab initio calculations. Agreement is good for T > 150 K. At lower temperatures, the samples with isotopic compositions different from the natural one display an anomalous increase in C-rho/T-3 with decreasing temperature which is attributed to the presence of metallic inclusions stemming from the metal used as a solvent in the high-pressure high-temperature growth process. (C) 2004 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据