Magnetic and electrical transport properties of La0.65Ca0.30Pb0.05Mn0.90Cu0.10O3 compounds: Thermal hysteresis

被引：2
|
作者：
Irmak, A. E. [1 ,2 ]
Tasarkuyu, E. [1 ,2 ]
Coskun, A. [1 ,2 ]
Acet, M. [3 ]
Samancioglu, Y. [1 ,2 ]
Akturk, S. [1 ,2 ]
机构：
[1] Mugla Sitki Kocman Univ, Dept Phys, Fac Sci, TR-48000 Mugla, Turkey
[2] Mugla Sitki Kocman Univ, Magnet Mat Lab, Res Labs Ctr, TR-48000 Mugla, Turkey
[3] Duisburg Essen Univ, Expt Phys, D-47048 Duisburg, Germany
来源：
PHYSICA B-CONDENSED MATTER | 2015年 / 470卷
关键词：
Manganites; Magnetization; Resistivity; Hysteresis; TEMPERATURE RESISTIVITY MINIMUM; MAGNETOCALORIC PROPERTIES; MAGNETORESISTANCE; BEHAVIOR; GLASS; LA0.67CA0.33MNO3; SUBSTITUTION; FILM;
D O I：
10.1016/j.physb.2015.04.027
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Structural, electrical, and magnetic properties of La-0.65(Ca0.30Pb0.05)Mn0.90Cu0.10O3 compound were investigated. The compound, prepared by the sol-gel route, was pressed into pellets and one of them was sintered at 900 degrees C and the other at 1000 degrees C for 24 h. The aim of the study was to explore structural, electrical and magnetic properties of the compound. Temperature dependent X-ray powder diffraction studies on the sample sintered at 900 C reveal an orthorhombic-Pbnm perovskite structure through the temperature range between 320 K and 86 K. Scanning electron microcopy and energy dispersive spectroscopy analyses showed grainy, homogeneous and stoichiometric structure. Magnetization and resistivity measurements reveal that the Curie temperatures, T-C, and insulator-metal transition temperatures, T-IM, coincide, but the samples sintered at 900 degrees C also exhibit thermal hysteresis both in magnetization and resistivity upon cooling and warming. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：56 / 63
页数：8
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