Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films

TL;DR

This study investigates how strain influences magnetic field-induced charge order melting in Pr0.5Ca0.5MnO3 thin films, revealing that film thickness and strain type significantly affect the transition behavior.

Contribution

It provides new insights into the strain-dependent charge order melting phenomena in Pr0.5Ca0.5MnO3 thin films, highlighting the role of film thickness and strain nature.

Findings

Charge order melting occurs in very thin films.

Transition temperature depends on strain.

Strain type influences charge order behavior.

Abstract

Thin films of the half doped manganite Pr0.5Ca0.5MnO3 were grown on (100) oriented MgO substrates by pulsed laser deposition technique. In order to study the effect of strain on the magnetic field induced charge order melting, films of different thicknesses were prepared and their properties were studied by x-ray diffraction, electrical resistivity and magnetoresistance measurements. A field induced charge order melting is observed for films with very small thicknesses. The charge order transition temperature and the magnetic filed induced charge order melting are observed to depend on the nature of strain that is experienced by the film.