Influence of non-magnetic ion In3+ on the magneto-transport properties in La0.7Bi0.05Sr0.15Ca0.1Mn1-xInxO3 (0 ≤ x ≤ 0.3) perovskite

被引：18
作者：
Belkahla, Arwa [1 ]
Cherif, K. [1 ]
Belmabrouk, Hafedh [2 ]
Bajahzar, Abdullah [3 ]
Dhahri, J. [1 ]
Hlil, E. K. [4 ,5 ]
机构：
[1] Fac Sci, Lab Condensed Matter & Nanosci, Phys Dept, Monastir 5019, Tunisia
[2] Majmaah Univ, Coll Sci Zulfi, Dept Phys, Zulfi 11932, Saudi Arabia
[3] Majmaah Univ, Coll Sci Zulfi, Dept Comp Sci & Informat, Zulfi 11932, Saudi Arabia
[4] Inst Neel, CNRS, BP 166, F-38042 Grenoble, France
[5] Univ Joseph Fourier, BP 166, F-38042 Grenoble, France
来源：
SOLID STATE COMMUNICATIONS | 2019年 / 294卷
关键词：
Manganites; Magnetic transition; Magnetoresistance; Electrical resistivity; Percolation model; ELECTRICAL-PROPERTIES; TRANSPORT-PROPERTIES; MAGNETORESISTANCE; MANGANITES; BEHAVIOR; VALENCE; SUBSTITUTION; TRANSITION; PHYSICS; FILM;
D O I：
10.1016/j.ssc.2019.03.004
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this work, the polycrystalline La0.7Bi0.05Sr0.15Ca0.1Mn1-xInxO3 (0= x= 0.3) have been prepared by the Pechini-sol-gel method. A significant improvement in magnetoresistance (MR) has been observed from 64% for x = 0-84% for x= 0.3 at a magnetic applied field of 5T. Analysis on the measured electrical resistivity data indicates that for T below metal - semiconducting transition temperature (TM-Sc), the resistivity was described by a phenomenological percolation model which is based on theory on electron-electron, electron-phonon scattering. However, for T above TM-Sc, two conduction models are explored to describe the transport behaviors: the Mott's variable range hopping (VRH) model and the small polaron hopping model (SPH).
引用
收藏
页码：16 / 22
页数：7
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