TRIPHONONS IN CRYSTAL CO2

被引：10

作者：

BINI, R

SALVI, PR

SCHETTINO, V

JODL, HJ

机构：

[1] UNIV FIRENZE, DIPARTIMENTO FIS, EUROPEO SPETTROSCOPIA LINEARI LAB, I-50135 FLORENCE, ITALY

[2] UNIV KAISERSLAUTERN, FACHBEREICH PHYS, W-6750 KAISERSLAUTERN, GERMANY

来源：

PHYSICS LETTERS A | 1991年 / 157卷 / 4-5期

关键词：

D O I：

10.1016/0375-9601(91)90066-H

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental evidence is reported for triphonons in crystal CO2. A simplified theory is presented which predicts the occurrence, for sufficiently high crystal anharmonicity, of bound triphonon (TP) and biphonon + phonon (BP + P) states. Good agreement with the infrared spectrum of crystal CO2 in the (omega-1 + omega-2; 3-omega-2) region is found. This is, to our knowledge, the first observation of bound triphonons in molecular crystals.

引用

收藏

页码：273 / 282

页数：10

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