4.4 Article

Transport-magnetism correlation in layered perovskite manganite LaCaBiMn2O7

Journal

SOLID STATE COMMUNICATIONS
Volume 350, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2022.114785

Keywords

Percolation theory; Double layered perovskite; Transport properties; Magnetoresistance

Ask authors/readers for more resources

An investigation was conducted on the electrical behavior of the double-layered perovskite LaCa-BiMn2O7 at various temperatures and magnetic fields, revealing a metal-insulator transition and a strong magnetoresistance effect. The relationship between transport properties and magnetic behavior was analyzed using a mathematical model, predicting the magnetic entropy change.
An investigation was conducted to understand the electrical behavior of the double-layered perovskite LaCa-BiMn2O7 at temperatures varying from 2 to 400 K under a magnetic field range 0-5 T. At metal-insulator peak temperature (TMI), the data reveal a metal-insulator transition. The compound exhibits a strong magnetoresistance (MR) effect (~55%) around TMI at a field of 5 T, while the highest value of temperature coefficient of resistance (TCR) is 0.89% K-1 was found at zero-field. In order to analyze the electrical behavior as well as the magnetic properties, a simulation was established with the resistivity (rho) data using a mathematical model based on the percolation theory. The mutual relationship between transport properties and magnetic behavior has been exploited to predict the magnetic entropy change by analysis of rho(H, T), It is demonstrated that the magnetic entropy change acquired from rho(H, T) data is in accordance with those determined by magnetization measurements.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available