Electronic Structure of BiFe1−xMnxO3 Thin Films Investigated by X-Ray Absorption Spectroscopy. (20th June 2012)

• Record Type: Journal Article
• Authors: Ablat, Abduleziz; Muhemmed, Emin; Si, Cheng; Wang, Jiaou; Qian, Haijie; Wu, Rui; Zhang, Nian; Wu, Rong; Ibrahim, Kurash
• Other Names: Hao Weichang Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2012(2012)
• Publication Date: 2012-06-20
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2012/123438
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : Multiferroic polycrystalline BiFe1- x Mn x O3 (0 ≤ x ≤ 0 .3 ) thin films have been prepared on the Pt(111)/Ti/SiO2 /Si(100) substrates by pulsed laser deposition method. The influence of Mn substitution on the electronic structure and magnetic properties has been studied. X-ray diffraction spectroscopy shows that Mn substitution slightly modulates crystal structure of the BiFe1- x Mn x O3 system within the same structural phase. According to Fe L edge X ray absorption spectroscopy, Fe ions are found to be formally trivalent for doping amount x in BiFe1- x Mn x O3 . The enhanced magnetization by increasing Mn content is attributed to an alternation degree of hybridization between Fe 3 d -O 2 p and Mn 3 d -O 2 p orbitals, basing on the carefully examined Fe L and O K edge X-ray absorption spectroscopy. The crystal structural and the electronic structural results show a causal relation between them by demonstrating intrinsic mutual dependence between respective variations.