首页|Magnetic and transport behaviors of Co substitution in La0.7Sr0.3MnO3 perovskite
Magnetic and transport behaviors of Co substitution in La0.7Sr0.3MnO3 perovskite
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier B.V.The magnetic and electrical properties of the substituted La0.7Sr0.3Mn1-xCoxO3 perovskite (0 ≤ x ≤ 1) were studied. Analysis of the average spin value obtained from inverse magnetic susceptibility using Curie–Weiss law for the samples suggested Co4+ ions were in the high spin state, whereas the spin state of Co3+ ions transformed from high spin to intermediate-spin state at x= 0.8. The metallic conduction behavior of the x = 0 and x = 1 samples was analyzed using the empirical equation ρt=ρ0+ρ2T2+ρ4.5T4.5, reflecting the importance of electron–magnon scattering effects similarly to other manganites. All the other samples displayed semiconductor-like behavior throughout the studied temperature range. The resistivity data in semiconducting La0.7Sr0.3Mn1-xCoxO3 could be fitted to the model of variable range hopping, and both hopping distance and average hopping energy reduced with increasing doped Co concentration.
CobaltitesConduction mechanismElectrical transportManganitesSpin state
Ngan L.T.T.、Nam P.H.、Dang N.T.、Phuc N.X.、Bau L.V.、Dang N.V.、Manh D.H.、Nguyen L.H.、Phong P.T.
展开 >
Graduate University of Science and Technology Vietnam Academy of Science and Technology
Institute of Research and Development Duy Tan University
Hong Duc University
Department of Physics and Technology Thai Nguyen University of Science
Institute of Materials Science Vietnam Academy of Science and Technology
Laboratory of Magnetism and Magnetic Materials Science and Technology Advanced Institute Van Lang University
NSTL
Elsevier
