...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chinese science bulletin >Equations of state and phase transition in solid C_(60) at high pressure
【24h】

Equations of state and phase transition in solid C_(60) at high pressure

机译：固态C_（60）在高压下的状态和相变方程

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Properties of solid C_(60) at atmospheric pressure have been widely studied since solid C_(60) was discovered. In recent years, the crystal structure, electrical and optical properties of solid C_(60), at high pressure have been studied, and some newinteresting phenomena observed,.The high-pressure X-ray diffraction and electrical resistance measurements showed that solid C_(60), has a phase transition at about 15 — 22 GPa Recent studies still indicated that solid C_(60) has a phase transition froma high-temperature f.c.c. structure to a low-temperature s.c. structure at 249 K, and that the order-disorder transition temperature increases with increasing pressure, so the phase transition in solid C_(60) at room temperature occurs at pressures above about 0.3—0.45 GPa. The capacitance measurement in the diamond anvil cell (DAC) showed that the phase transition in solid C_(60), was observed at pressures of about 1,6 — 4.2 GPa at room temperature. In the present work, the P-V relationship for solid C_(60) to 4,5 GPa has been studied, using the measurement method for the P-V relationship, The phase transition in solid C_(60), has been observed in the measured pressure range, and its equations of state before and after the phase transition have also been given.
机译：自从发现固体C_（60）以来，已经广泛研究了固体C_（60）在大气压下的性能。近年来，研究了固态C_（60）在高压下的晶体结构，电学和光学性质，并观察到一些新的有趣现象。高压X射线衍射和电阻测量表明，固态C_（60） 60），在约15-22 GPa时具有相变。最新研究仍表明，固态C_（60）与高温fcc具有相变结构至低温s.c.在249 K的温度下，其结构是有序的，并且有序-无序转变温度随压力的增加而增加，因此在室温下固态C_（60）的相变发生在约0.3-0.45 GPa的压力下。金刚石砧座电池（DAC）中的电容测量结果表明，在室温下，在约1,6-4.2 GPa的压力下观察到了固态C_（60）的相变。在目前的工作中，研究了固体C_（60）到4.5 GPa的PV关系，使用PV关系的测量方法，在测量压力范围内观察到了固体C_（60）的相变。还给出了相变之前和之后的状态方程。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号