THE INFLUENCE OF THE ISOTOPIC COMPOSITION ON THE THERMAL-EXPANSION OF CRYSTALLINE SI

被引：21

作者：

BIERNACKI, S ^{[1
]}

SCHEFFLER, M ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST PHYS,PL-02668 WARSAW,POLAND

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 26期

关键词：

D O I：

10.1088/0953-8984/6/26/009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report first-principles calculations of the dependence of the lattice parameter of Si on temperature and on the isotopic composition. Around 80 K (the minimum of the thermal expansion coefficient) the lattice parameter difference of different isotopic compositions is largest and then it decreases monotonically with increasing temperature. The results are explained in a simple physical picture.

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页码：4879 / 4884

页数：6

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