Electrical property of Half Metallic Ferromagnet Pr0.95Mn0.939O3

TL;DR

This study investigates the electrical properties of Pr0.95Mn0.939O3, a half metallic ferromagnet, revealing its semiconductor behavior and the influence of 4f and 3d orbital interactions, relevant for spintronics applications.

Contribution

It provides experimental evidence of the electrical behavior of Pr-based TMC, highlighting the role of orbital interactions in its semiconductor properties.

Findings

Electrical conductivity decreases with temperature.

Sample exhibits semiconductor behavior.

Orbital interactions influence electrical properties.

Abstract

Half metallic ferromagnetic compounds (HMF) are intensively explored for their potential in spintronics application. According to theoretical studies, HMF are those materials where the conduction mechanism is due to one type of spin state, either up or down. Band theory strongly predicts that Praseodymium (Pr) based transition metal compound (TMC) is HMF whose electrical properties are a consequence of the contribution from both the 4f and 3d orbitals of Pr and TMC ions. Hence, an investigation has been made by preparing Pr0.95Mn0.939O3 by ball milling assisted sintering process. The phase confirmation of the prepared compound is carried out using X-Ray diffraction technique. Impedance analysis with respect to temperature indicates a decreasing trend in electrical conductivity with respect to temperature, confirming the semiconductor behaviour of the sample. This may be due to the consequence of the interaction of 4f and 3d orbitals of the rare-earth (Pr) and transition metal compound (Manganese).