TEMPERATURE-DEPENDENCE OF THE RAMAN-SPECTRUM OF TETRAPHOSPHORUS TRISELENIDE

被引：21

作者：

BURNS, GR

机构：

[1] Univ of Wellington, Wellington, NZ, Univ of Wellington, Wellington, NZ

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1986年 / 47卷 / 07期

关键词：

SPECTROSCOPY; RAMAN; -; Applications;

D O I：

10.1016/0022-3697(86)90083-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Raman spectrum of P//4Se//3 has been measured as a function of temperature in the range 20-370 K, at ambient pressure. The internal and external first-order Raman-active phonons vary smoothly in wave number over the temperature interval 20-350 K, but the crystalline-plastic phase change at 355 K results in the loss of the external mode manifold from the 370 K Raman spectrum, leaving only a wing to the Raleigh-scattered component. The temperature coefficients of most external phonons are larger than those of the energetically well-separated internal phonons.

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页码：681 / 687

页数：7

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