A new manganese oxide with the Aurivillius structure:: Bi2Sr2Nb2MnO12-δ

被引：36

作者：

Yu, WJ ^{[1
]}

Kim, YI ^{[1
]}

Ha, DH ^{[1
]}

Lee, JH ^{[1
]}

Park, YK ^{[1
]}

Seong, S ^{[1
]}

Hur, NH ^{[1
]}

机构：

[1] Korea Res Inst Stand & Sci, Ctr CMR Mat, Taejon 305600, South Korea

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 111卷 / 12期

关键词：

magnetically ordered materials; crystal structure and symmetry;

D O I：

10.1016/S0038-1098(99)00258-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new oxygen deficient manganese oxide, Bi2Sr2Nb2MnO12-delta with the Aurivillius type phase was successfully synthesized. It adopts an orthorhombic structure that has Fmmm space group symmetry, and lattice parameters of a 5.5243(4) Angstrom, b = 5.5246(3) Angstrom, and c = 32.9996(9) Angstrom. The structure contains an oxygen deficient [MnO2-delta] layer that is interleaved between double [NbO2] layers. Virtually no disordered distribution of Mn and Nb between two possible sites is observed. The temperature dependent data of magnetic susceptibility and resistivity reveal that the compound is paramagnetic and exhibits a semiconducting behaviour with the activation energy E-a of 0.216 eV. (C) 1999 Published by Elsevier Science Ltd. Ail rights reserved.

引用

页码：705 / 709

页数：5

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