Synthesis and Magnetic properties of Bulk and Nano Pr0.57Ca0.43Mn0.98Ga0.02O3 Manganites

被引：3

作者：

Koushalya, P. R. ^{[1
]}

Anuradha, K. N. ^{[2
]}

机构：

[1] Don Bosco Inst Technol, Dept Phys, Bangalore 560072, Karnataka, India

[2] Dr Ambedkar Inst Technol, Dept Phys, Bangalore 560056, Karnataka, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 10期

关键词：

Nanomaterials; Charge order; Ferromagnetism; A-SITE SUBSTITUTION; PHASE-TRANSITION; PR0.5CA0.5MNO3; ORDER; FIELD; CR;

D O I：

10.1016/j.matpr.2018.06.472

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we report the synthesis and magnetic properties of bulk and nanoPr(0.57)Ca(0.43)Mn(0.98)Ga(0.02)O(3) (PCMGO) manganites. Bulk and nano samples of PCMGO were prepared by sol gel method. All the samples were characterized by X-ray diffraction (XRD) technique, scanning electron microscopy (SEM) and energy dispersive X-ray diffraction analysis (EDAX). The temperature dependent magnetic properties of the samples were studied using Vibrating Sample Magnetometer (VSM). We have observed an interesting feature in the magnetic properties of both bulk and nano PCMGM manganite. Bulk PCMGO was charge ordering around 245 K whereas charge ordering has been disappeared in PCMGO nano samples. Both bulk and nano PCMGO show ferromagnetic transition at low temperature. Hysteresis measurements confirm the ferromagnetic transition of the nanosamples. The effect of size reduction and the substitution of Gallium in Mn site, upon the magnetic properties of PCMGO will be discussed. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：20858 / 20864

页数：7

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