Low temperature nucleation of Griffiths Phase in Co doped LaMnO3 nanostructures

被引：12

作者：

Adeela, N. ^{[1
,2
]}

Khan, U. ^{[2
]}

Naz, S. ^{[3
]}

Iqbal, M. ^{[2
]}

Irfan, M. ^{[4
]}

Cheng, Y. ^{[1
]}

机构：

[1] Tsinghua Univ, Grad Sch Shenzhen, Div Energy & Environm, Shenzhen 518055, Peoples R China

[2] Univ Punjab, Ctr High Energy Phys, Lahore 54000, Pakistan

[3] Univ Gujrat, Dept Math, Gujrat 54700, Pakistan

[4] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 422卷

关键词：

Perovskite structure; Curie Weiss law; Griffiths phase; Hydrothermal method; MAGNETIC-PROPERTIES; BEHAVIOR; SIZE;

D O I：

10.1016/j.apsusc.2017.05.167

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have reported magnetic properties of La(1-x)CoxMnO(3) nanostructures synthesized by hydrothermal route. The crystal structure has been characterized by X-ray diffraction (XRD) technique, which shows rhombohedral perovskite structure at room temperature. Scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS) have been used to analyse morphology and chemical composition of prepared nanoparticles. Magnetic hysteresis loops of all the samples exhibit ferromagnetic behaviour at 10 K. Inverse susceptibility graphs as a function of temperature represent deviation from Curie Weiss law. The indication for short range ferromagnetic clusters well above Curie temperature is observed due to the Griffiths Phase (GP). It is proposed that the presence of GP arises from induced size effects of La and Co ions. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：184 / 191

页数：8

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