期刊
NANOTECHNOLOGIES IN RUSSIA
卷 14, 期 1-2, 页码 21-32出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1995078019010063
关键词
-
资金
- Russian Foundation for Basic Research [18-29-11013_mk]
- Program of the Presidium of the Russian Academy of Sciences [2-13, 6]
The equation of state P(v/v(o)) and the baric dependences of both the lattice and surface properties of germanium macro- and nanocrystals have been determined on the basis of the Mie-Lennard-Jones pairwise interatomic potential and the RP-model of a nanocrystal. It has been shown that the isothermal dependences P(v/v(o)) of macro- and nanocrystals intersect each other at a certain value of the relative volume (v/v(o))(0). The surface pressure becomes zero at the intersection point (at (v/v(o))(0)). The relative volume (v/v(o))(0) decreases with both an isomorphic-isomeric increase in the temperature and an isomorphic-isothermic decrease in the number of atoms in a nanocrystal or upon the isomeric-isothermic deviation of a nanocrystal from its energetically optimal shape (a cube for the RP-model). Based on the derived equation of state, the changes in 23 properties of germanium with both an isochoric (v/v(o) = 1) and isobaric (P = 0) decrease in the number of atoms in a nanocrystal at temperatures of 100, 300, and 1000 K have been studied. It has been shown that the higher the temperature of a nanocrystal is, the greater the increase is in the specific volume of a germanium nanocrystal under an isobaric (P = 0) decrease in its size.
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