Structural and Magneto-Transport Properties of (1-x)La0.70Sr0.30MnO3 – (x)ErMnO3 (x = 0.00, 0.10, 0.20, and 0.30) Composite

被引：0
|
作者：
Vikash Singh
Pawan Kumar
Subhash Sharma
R. K. Dwivedi
机构：
[1] ABES Engineering College,School of Basic and Applied Sciences
[2] K. R. Mangalam University,CONACYT
[3] Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología
[4] Jaypee Institute of Information Technology,Department of Physics and Materials Science and Engineering
来源：
Journal of Superconductivity and Novel Magnetism | 2021年 / 34卷
关键词：
Colossal magneto-resistance; Paramagnetic and ferromagnetic phase; Phase transition and magneto-electrical properties;
D O I：
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中图分类号：
学科分类号：
摘要：
(1-x)La0.70Sr0.30MnO3 (LSMO) – (x)ErMnO3 (EMO) (x = 0.00, 0.10, 0.20, and 0.30) ceramics were synthesized by chemical route. The structure characterization of all the samples was carried out at room temperature. The LSMO has rhombohedral symmetry with space group R-3C and EMO has hexagonal symmetry with space group P63/mcm. The temperature-dependent resistivity behavior of pure and composite samples has shown metal-insulator (MI) transition. The peak resistivity ρmax increases with decrease in MI transition temperature. Percentage magneto-resistance (MR) variation of LSMO-EMO (x = 0.10, 0.20, and 0.30) with temperature has also been studied. The result of ln (ρ) vs. Tn shows that conduction occurs due to variable range hopping (VRH) of electrons for x = 0.20 and 0.30. % MR data has been statically analyzed which shows the normal distribution.
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页码：859 / 864
页数：5
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