Crystal growth and optical properties of iron sillenite Bi25FeO40

被引：10

作者：

Borowiec, MT ^{[1
]}

Majchrowski, A ^{[1
]}

Zmija, J ^{[1
]}

Szymczak, H ^{[1
]}

Zayarniuk, T ^{[1
]}

Michalski, E ^{[1
]}

Baranski, M ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Phys, Warsaw, Poland

来源：

SOLID STATE CRYSTALS 2002: CRYSTALLINE MATERIALS FOR OPTOELECTRONICS | 2003年 / 5136卷

关键词：

sillenites; Bi25FeO40; top seeded solution growth; optical properties; photochromism;

D O I：

10.1117/12.518691

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Top Seeded Solution Growth (TSSG) technique has been used to produce Bi25FeO40 (BiFeO) single crystals. Thermal conditions enabling growth of uniform [110] sillenite single crystals with flat (110) interface have been found. Spectral characteristics of these single crystals have been investigated. The optical absorption measurements were performed in a broad spectral (IR, VIS and UV) and temperature (3.5K-500K) ranges. The intense source of light was used for coloration of samples. The thermally bleached state was reached after 2 hours annealing at 200degreesC in the darkness. The optical absorption spectra were shown to be connected with forbidden transitions of Fe3+ ions. The induced absorption is probably due to the polaron center (Fe3++h) similar to that observed in BGO and BSO single crystals.

引用

页码：26 / 30

页数：5