Eur. Phys. J. Special Topics 167, 67-71 (2009)
https://doi.org/10.1140/epjst/e2009-00938-3

Structural study on y thin films on perovskite (011) substrate

¹ Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan
² Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, 153-8904, Japan
³ CREST, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi, 332-0012, Japan
⁴ Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan

Corresponding author: wakabayashi@mp.es.osaka-u.ac.jp

Abstract

Structural study on the photo-switching system Pr_0.55(Ca_1-ySr_y)_0.45 MnO₃ thin films on perovskite (011) substrate has been made with synchrotron radiation diffraction experiment. The insulating phase of y=0.20 sample was found to be an antiferro-orbital ordered phase with large lattice distortion and the ferromagnetic metallic phase of y=0.40 film show no distinct lattice distortion from the paramagnetic phase, which are very similar with (Nd,Pr)_0.5Sr_0.5MnO₃ films. A striking contrast of the orbital ordered phase of y=0.20 film to (Nd,Pr)_0.5Sr_0.5MnO₃ films was its untwinned structure.