Magnetic phase and transport property of Pr1−xCaxMnO3 thin films

${\mathrm{Pr}}_{\text{1−x}}{\mathrm{Ca}}_x{\mathrm{MnO}}_3\mathrm{ (}\mathrm{PCMO}\text{,x=0.3)/}{\mathrm{YBa}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{\text{7−z}}\mathrm{ (}\mathrm{YBCO})$ bilayers were fabricated on $\text{(100)}{\mathrm{LaAlO}}_3$ single-crystal substrates, and some changes in magnetic properties between high- and low-resistance (HR/LR) states were observed. The samples showing a larger magnetization at 300 K are the ones which could be more easily switched between those two states. According to $\mathrm{M-H}$ measurements by superconducting quantum interference device, the HR state showed a slightly larger magnetization. Electron spin resonance measurements exhibited two absorption peaks whose intensity ratio was reversed when the HR/LR transition occurred. Some change was suggested to occur on magnetic properties through HR/LR transition in $\mathrm{PCMO}\text{\hspace{0.05em}(x=0.3)/}\mathrm{YBCO}$ bilayered films.