Nanostructure and performance of Pt–LaNiO3 composite film for ferroelectric film devices

✍ Scribed by Liang Qiao; Xiaofang Bi

• Book ID: 103998872
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 731 KB
• Volume: 57
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/j.actamat.2009.05.008

✦ Synopsis

A conductive composite film of LaNiO 3 containing 36.1 at.% Pt was fabricated by radiofrequency co-sputtering. The film consists of two individual phases of separated LaNiO 3 and Pt. X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy analysis reveal a net-like nanostructure characterized by 5 nm Pt grains embedded in the LaNiO 3 matrix. Temperature-dependent resistivity measurement indicates a weak electron-phonon interaction and strong electron-electron scattering in the film. BaTiO 3 film deposited on the composite film exhibits an increased remnant polarization due to release of interfacial charge accumulation, which indicates that the present conductive composite layer can be used as a promising electrode buffer layer in preparing ferroelectric film devices.