Magnetic interaction and electronic transport in La<inf>0.4</inf>Bi<inf>0.6</inf>Mn<inf>0.5</inf>Ti<inf>0.5</inf>O<inf>3</inf> manganite

Abstract

We report magnetic interactions and electronic transport properties in La0.4Bi0.6Mn0.5Ti0.5O3 perovskite manganite synthesized using solid-state route. After characterizing the samples structurally, the systematic investigations of magnetic and electrical transport behaviors have been undertaken. It has been observed that at low temperatures near TC, the sample is magnetically frustrated leading to the second-order magnetic transition. A justification for the observed magnetic behavior has been explained based on Arrott's plot study. The resistivity as a function of temperature in the absence and the presence of applied magnetic field suggests semiconducting nature of the sample. The conduction of the charge carriers is explained using ShklovskiiEfros-type variable-range-hopping mechanism. KeywordsPerovskite manganite, Magnetic properties, Arrott Plots, SE-VRH mechanism, Hopping conduction This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. Abstract−We report magnetic interactions and electronic transport properties in La0.4Bi0.6Mn0.5Ti0.5O3 perovskite manganite synthesized using solid state route. After characterizing the samples structurally, systematic investigations of magnetic and electrical transport behaviors have been undertaken. It has been observed that at low temperatures near TC, the sample is magnetically frustrated leading to second order magnetic transition. A justification for the observed magnetic behaviour has been explained based on Arrott's plot study. The resistivity as a function of temperature in the absence and presence of applied magnetic field suggests semiconducting nature of the sample. The conduction of the charge carriers is explained using Shklovskii-Efros-type variable range hopping mechanism. Disciplines Biological and Chemical Physics | Electrical and Computer Engineering | Electromagnetics and Photonics