Crossover from charge order to strain glass in phase separated manganite thin films: Impact of thermal cycling and substrate induced strain

• Phase separated manganite films.
• AFM-FMM transition.
• Frustration induced magnetic liquid.
• COI-FMM Crossover.

The magnetic and electrical transport properties of single crystalline La1−x−yPryCaxMnO3 (x≈0.42, y≈0.40) thin films (~140 nm) deposited on (1 1 0) oriented LaAlO3 and SrTiO3 substrates have been investigated. The magnetotransport properties of these films exhibit substrate dependent phase separation and a crossover from the high temperature antiferromagnetic-charge ordered insulator (AFM-COI) phase (T>TC) to strain glass (T