Colossal magnetoresistive manganite thin films

TL;DR

This paper reviews the synthesis, structure, physical properties, and potential spintronic applications of colossal magnetoresistive manganite thin films, emphasizing the effects of deposition methods and strain on their properties.

Contribution

It provides a comprehensive overview of experimental techniques, structural-property relationships, and application prospects for manganite thin films, highlighting recent advances and challenges.

Findings

Deposition procedures significantly influence film properties.

Strain effects alter magnetic and electronic behaviors.

Potential for spin electronic devices is promising.

Abstract

Mixed-valence perovskite manganites (Re$_{1-x}$A$_{x}$MnO$_{3}$ where Re=rare earth, A=alkaline earth) provide a unique opportunity to study the relationships between the structure and the magnetotransport properties due to an interplay among charge carriers, magnetic coupling, orbital ordering and structural distortion. This makes these compounds very exciting from both the basic research and from the technological view point. As the technology pursued with these materials requires film growth, extensive studies have been made on materials synthesis, structural and physical characterization and device fabrication. In this article, the results of the different experimental techniques and the effects of the deposition procedure of the manganite thin films are first reviewed. Second, the relation between the structural and the physical properties mentioned, and the influence of strains discussed.\ Finally, possible applications of manganite thin films for spin electronics are presented.