Analysis of the electrical and optical properties of VBO3 single crystals and Fe1-xVxBO3 solid solutions on the basis of a many-electron model of energy band structure

被引：8
|
作者：
Ivanova, NB [1 ]
Kazak, NV
Markov, VV
Ovchinnikov, SG
Rudenko, VV
Abd-Elmeguid, MM
机构：
[1] Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
[2] Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[3] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
来源：
PHYSICS OF THE SOLID STATE | 2004年 / 46卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.1788779
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A many-electron model of the energy band structure of VBO3 and of Fe1 - xVxBO3 solid solutions is proposed with strong electron correlations taken into account. Experimental optical absorption spectra and data on the resistivity are discussed in the framework of the suggested model. Variation in the magnetic and electronic properties of VBO3 and Fe1 - xVxBO3 under high pressure is predicted. For VBO3, a Mott-Hubbard (insulator-metal) transition is expected in the high-pressure phase. In Fe1 - xVxBO3 solid solutions, a nontrivial variation in the properties is predicted, leading to the appearance of a different magnetic state. (C) 2004 MAIK "Nauka / Interperiodica".
引用
收藏
页码：1462 / 1468
页数：7
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