Localized optical absorption in Cs4PbBr6

被引：81

作者：

Kondo, S ^{[1
]}

Amaya, K ^{[1
]}

Saito, T ^{[1
]}

机构：

[1] Fukui Univ, Res Ctr Dev Far Infrared Reg, Bunkyo Ku, Fukui 9108507, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 08期

关键词：

D O I：

10.1088/0953-8984/14/8/334

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The fundamental optical absorption of Cs4PbBr6 crystals, which are built up of nearly regular Pb2+(Br-)(6) octahedra mutually bound by Cs+ ions, exhibits novel features: despite the crystalline entity of Cs4PbBr6, it shows oscillator-like absorption peaks and a wide window just above the first peak. The Cs+ ions prevent the Pb2+ 6s and 6p states from taking part in the construction of extended states. These states form a set of localized states confined to within respective octahedra, similar to the case of isolated Pb2+ ions doped in face-centred cubic alkali halide crystals.

引用

页码：2093 / 2099

页数：7

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