Effect of substrate and Ca doping on the properties of BiMnO3 thin films by RF magnetron sputtering

被引：5

作者：

Pugazhvadivu, K. S. ^{[1
]}

Balakrishnan, L. ^{[2
]}

Tamilarasan, K. ^{[1
]}

机构：

[1] Kongu Engn Coll, Dept Phys, Thin Film Res Ctr, Perundurai 638052, India

[2] Natl Inst Technol, Dept Phys, Thin Film Lab, Tiruchirappalli 620015, India

来源：

MATERIALS LETTERS | 2012年 / 77卷

关键词：

BiMnO3; Sputtering; Ferromagnetism; Dielectric; DIELECTRIC-PROPERTIES; TRANSITION; PEROVSKITE; OXIDE;

D O I：

10.1016/j.matlet.2012.02.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi1-xCaxMnO3 (x = 0, 0.1) films were grown by radio frequency (RF) magnetron sputtering on Si (100) and Si (111) substrates. The grown films were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), vibrating sample magnetometer (VSM) and dielectric studies. The XRD results indicate that the films are polycrystalline with monoclinic structure, however the Bi0.9Ca0.1MnO3/Si (100) showed higher crystalline quality than those developed on Si (111). It has been observed from VSM studies that Bi0.9Ca0.1MnO3/Si (100) system has high saturation magnetization of 1.0x10(-3) emu/cm(3) at room temperature (RT) compared to other films. Room temperature dielectric measurement also shows that Bi0.9Ca0.1MnO3/Si (100) has higher value of dielectric constant compared to the other films. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：48 / 50

页数：3

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