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YU DENG1,2,* , DI WU2, QIANG CHEN1, YOUWEI DU2
BiFeO3 (BFO) is an attractive material for multifunctional devices. Besides good ferroelectricity and magnetism, BFO also shows large coupling responses and high photo-catalysis efficiency at room temperature (RT). To study the magnetic and phonon properties in BFO nanostructures, we prepared single-crystalline BFO nanorods with diameters of 15-40 nm and lengths of 100-400 nm by hydrothermal technique. XRD, TEM, EDX, SQUID and Raman scattering were used to investigate the samples. The BFO nanorods exhibit a rhombohedra phase and grow along the [110] crystallographic direction. Owing to the small size, enhanced spin-glass-type magnetism was detected in the BFO nanorods under RT. Between 77 K and 120 K, a large phonon abnormality associated with the spin-two-phonon coupling was revealed by Raman scattering. With emphasis on the size effects, the microstructural, magnetic and phonon properties of the BFO nanorods have also been discussed..
Nanorods Microstructure Magnetic property Laser Raman scattering Hydrothermal.
YU DENG, DI WU, QIANG CHEN, YOUWEI DU, Synthesis, microstructure, magnetic properties and Raman scattering of single crystalline BiFeO3 nanorods prepared by hydrothermal technique, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.370-373 (2012).
Submitted at: Feb. 10, 2012
Accepted at: April 11, 2012
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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