MILLIMETER-WAVE SPECTROSCOPY AND COLOR-CENTERS OF MAG4I5 (M=RB, K AND NH4) FAMILY

被引：7

作者：

AWANO, T

NANBA, T

IKEZAWA, M

机构：

[1] KOBE UNIV, DEPT PHYS, KOBE 657, JAPAN

[2] TOHOKU UNIV, SCI MEASUREMENTS RES INST, SENDAI, MIYAGI 980, JAPAN

来源：

SOLID STATE IONICS | 1992年 / 53卷

关键词：

D O I：

10.1016/0167-2738(92)90324-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reflectivity spectra of superionic conductors of MAg4I5 (M = Rb, K and NH4) and Rb4Cu16Cl13I7 were measured in a spectral region between 3.5 and 200 cm-1 at a temperature range from 15 K to 470 K. A structure of "ionic plasmon" was observed near 10 cm-1 (MAg4I5) or 20 cm-1 (Rb4Cu16Cl13I7) in energy loss function spectra. Coloration of MAg4I5 by X-ray irradiation was observed. The absorption band were intense in NH4Ag4I5 only by hole centers. The coloration rate of NH4Ag4I5 increases drastically at the temperature around the superionic phase transition as observed in RbAg4Is and KAg4I5.

引用

页码：1269 / 1273

页数：5

共 11 条

[1] COLOR-CENTERS IN SUPERIONIC CONDUCTORS OF RBAG4I5 AND KAG4I5 [J].