Synthesis and physical properties of Bi5Ti3MnO15

被引：23

作者：

Kumar, MM ^{[1
]}

Srinivas, A ^{[1
]}

Kumar, GS ^{[1
]}

Suryanarayana, SV ^{[1
]}

机构：

[1] OSMANIA UNIV, DEPT PHYS, MAT RES LAB, HYDERABAD 500007, ANDHRA PRADESH, INDIA

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 12期

关键词：

D O I：

10.1016/S0038-1098(97)10029-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Bi5Ti3MnO15 is found to be a four layered perovskite, like Bi5Ti3FeO15 having an orthorhombic structure, with the lattice parameters a = 5.40 Angstrom, b = 5.44 Angstrom and c = 41.22 Angstrom. The compound shows interesting physical property variations when Fe is replaced with Mn. A peak in resistivity is observed at 126 K. The resistivity data in the range 77-300 K is interesting as it appears similar to that of I-M like transition. Conduction in the insulating region is governed by Mott's Variable Range Hopping. The magnetic nature indicates it to be an antiferromagnet at low temperatures however without a hysteresis loop at room temperature as observed in the case of Bi5Ti3FeO15. The sample is a ferroelectric showing anomalies at 556 and 589 K (100 kHz). (C) 1997 Elsevier Science Ltd.

引用

页码：741 / 746

页数：6

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