Enhanced Magnetic Properties and Spin-Phonon Coupling of Single-Crystalline BiFeO₃ Nanorods Prepared by Hydrothermal Technique

Abstract:

By hydrothermal methods single-crystalline BiFeO3 (BFO) nanorods with diameters of 15-40nm and lengths of 100-400nm were synthesized. The rhombohedra phased nanorods grow along the [110] direction. The nanorods show weak ferromagnetism at room temperature and enhanced spin-glass type magnetism at low temperature. Around 100K, a strong spin-two-phonon coupling has been detected, confirming the spin-glass freezing behaviors. With emphasis on the size and morphology, the enhanced magnetism and the spin-glass freezing of the BFO nanorods have been discussed.

• Periodical: Advanced Materials Research (Volumes 560-561)
• Pages: 766-770
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.560-561.766
• Online since: August 2012
• Authors: Yu Deng, Di Wu, You Wei Du
• Keywords: Hydrothermal, Magnetic Property, Spin-Phonon Coupling

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