Multiferroic double-perovskite Bi2FeMnO6 hollow particles

Authors

Yi Du, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
Hongyang Zhao, National Institute Materials Science, Japan
Hideo Kimura, National Institute For Materials Science
Peng Zhang, University of Wollongong
Zaiping Guo, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow

RIS ID

34381

Publication Details

Du, Y., Cheng, Z. X., Zhao, H. Y., Kimura, H., Zhang, P., Guo, Z. P. Wang, X. L. (2011). Multiferroic double-perovskite Bi₂FeMnO₆ hollow particles. Current Applied Physics, 11 (3), s236-s239.

Abstract

Double perovskite structured multiferroic Bi₂FeMnO₆ hollow particles have been fabricated on silicon substrates from a sol-gel precursor by an electrospray method. The as-prepared Bi₂FeMnO₆ polycrystalline samples are pure-phase, crystallizing in space group R3c. Raman spectra have verified the vibrational frequencies in the Bi₂FeMnO₆ samples. The Bi₂FeMnO₆ nano-/micron-sized hollow particles show a porous shell with large interior void. The shell thickness is ∼100 nm. The structure and morphology of the sample were found to be controlled by the deposition time. The formation mechanism can be explained by an Ostwald ripening − Kirkendall model. The temperature dependence of the magnetization curve (M–T) and magnetic hysteresis loops indicate that Bi₂FeMnO₆ particles exhibit weak ferromagnetic moment at both low and room temperature.