HARRICK PLASMA

Generation of BiFeO3-Fe3O4 Janus particles based on droplet microfluidic method

We report on the feasible generation of BiFeO3-Fe3O4 Janus particles (JPs) based on droplet microfluidic method. Utilizing laminar flow and flow-focusing in microchannels, BiFeO3 and Fe3O4 nanoparticles were separately embedded in each hemisphere of one hydrogel particle. The size of the Janus particles showed favorable uniformity at micron scale and could be precisely controlled by flow rate regulation. The magnetism and ferroelectricity of the JPs were confirmedby magnetization and polarization measurements, indicating potential in multiferroic applications.

Li, Shasha, Xiaolei Yu, Sujian You, Bo Cai, Chang Liu, Huiqin Liu, Wei Liu, Shi-Shang Guo, Xing-Zhong Zhao

Appl. Phys. Lett.

105

42903

2014

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