PHOTOINDUCED TRANSFORMATIONS IN PYROCHLORE AND TRIRUTILE PHASES OF HTAWO6

被引：6

作者：

CAZZANELLI, E ^{[1
]}

MARIOTTO, G ^{[1
]}

CATTI, M ^{[1
]}

MARI, CM ^{[1
]}

机构：

[1] UNIV MILAN, DIPARTIMENTO CHIM FIS & ELETTROCHIM, I-20133 MILAN, ITALY

来源：

SOLID STATE IONICS | 1992年 / 53卷

关键词：

D O I：

10.1016/0167-2738(92)90404-D

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：

The transformations of the two known solid phases of HTaWO6, pyrochlore and trirutile, under visible light laser irradiation have been investigated using Raman spectroscopy. Pyrochlore specimens show a transition to a trirutile phase after strong irradiation in air. The same effect is also obtained by heating up to 700-degrees-C. A more moderate irradiation of pyrochlore samples in a oxygen-free environment produces a different transformation to a phase similar to Ta2O5. The trirutile phase always decomposes even under weak light exposure, into two compounds: WO3 and another material also similar to Ta2O5.

引用

页码：383 / 390

页数：8

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