This study demonstrates the effect of a Ca substituent for Sr on the structural, chemical, and electrical properties in La0.7Sr 0.3-xCaxMnO3 perovskite manganite films. The structural modification of films was found to be affected by the amount of Ca substituent. Raman spectroscopy analysis reveals a decrease of bond angle and an increase of Jahn-Teller type distortion in MnO6 octahedra with increasing Ca. The resistance value of high resistance state, switching voltage and resistive switching ratio of La0.7Sr0.3-xCa xMnO3 films decreased with increasing amounts of Ca substituent. The relationships among structural, interfacial, and electrical properties including resistive switching behaviour of La0.7Sr 0.3-xCaxMnO3 were examined.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Acoustics and Ultrasonics
- Surfaces, Coatings and Films