Substrate-effect on the magnetic microstructure of La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ thin films studied by magnetic force microscopy

Abstract

Colossal magnetoresistive (CMR) La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ (LSMO) thin films have been grown under tensile strains on (100)-SrTiO${}_3$ substrates and compressive strains on (100)-LaAlO${}_3$ and (110)-NdGaO${}_3$ substrates by pulsed laser deposition. Using magnetic force microscopy (MFM), a "feather-like" magnetic pattern, characteristic of films with an in-plane magnetization, is observed for films deposited on both SrTiO${}_3$ and NdGaO${}_3$ while a "bubble" magnetic pattern, typical of films with an out-of plane magnetization, is recorded for LaAlO${}_3$. We show that the shape of the magnetic pattern imaged by MFM is fully correlated to the easy direction of the magnetization in the film.

Submitted to Applied Physics Letters

References in corpus (1)

• Spectacular decrease of the melting magnetic field in the charge-ordered state of tensile Pr0.5Ca0.5MnO3 films

Cited by in corpus (3)

• Colossal magnetoresistive manganite thin films
• Uniaxial contribution to the magnetic anisotropy of La0.67Sr0.33MnO3 thin films induced by orthorhombic crystal structure
• Strain induced magnetic domain evolution and spin re-orientation transition in epitaxial manganite films