Monte Carlo study of the effect of charge ordering on the electrical and magnetic properties of half-doped manganites

被引：5
|
作者：
Ahmed, Mahrous R. [1 ]
机构：
[1] Sohag Univ, Fac Sci, Dept Phys, Sohag 82534, Egypt
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2020年 / 504卷
关键词：
Monte Carlo; Ising model; Manganite; Charge ordering; COLOSSAL MAGNETORESISTANCE; DIELECTRIC-PROPERTIES; DEPENDENCE;
D O I：
10.1016/j.jmmm.2020.166628
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Monte Carlo Antiferromagnetic Ising model was used to study the electrical properties and magnetoresistance of manganese oxides due to the charge ordering phase occurring at half doping, x = 0.5. The half-doped manganites have an insulator antiferromagnetic ground state. The internal energy, specific heat, resistivity, the magneto-resistance and magnetization have been investigated with different applied magnetic fields. Our simulation reveals that the resistivity decreases exponentially as the free charge increase to transport from the insulator to conductor phase. The magnetoresistance has positive high values with magnetic field. The obtained insulator-metal transition behavior candidates the half-doped manganites to be very good semiconductors diode junctions.
引用
收藏
页数：5
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