RAMAN-STUDY OF THE FERROELECTRIC SEMICONDUCTOR SN2P2SE6

被引：32

作者：

VANLOOSDRECHT, PHM ^{[1
]}

MAIOR, MM ^{[1
]}

MOLNAR, SB ^{[1
]}

VYSOCHANSKII, YM ^{[1
]}

VANBENTUM, PJM ^{[1
]}

VANKEMPEN, H ^{[1
]}

机构：

[1] UZHGOROD STATE UNIV,INST PHYS & CHEM SOLID STATE,UZHGOROD 29400,UKRAINE

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.48.6014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Raman spectrum of Sn2P2Se6 is found to be in good agreement with the selection rules in the paraelectric and ferroelectric phases. The incommensurability has only a minor influence on the phonon scattering in Sn2P2Se6. A broad central peak is found in the ferroelectric phase, whose intensity reaches a maximum near the lock-in phase transition. Line-shape distortions of some of the phonon modes indicate a Fano type of coupling to the excitations causing the central peak.

引用

页码：6014 / 6018

页数：5

共 13 条

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