Spinodally synthesized magnetoelectric | Zendy

Shenqiang Ren | Zendy; Manfred Wuttig | Zendy

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Spinodally synthesized magnetoelectric

Author(s) -

Shenqiang Ren,

Manfred Wuttig

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2767174

Subject(s) - materials science , curie temperature , condensed matter physics , magnetic force microscope , ferromagnetism , transmission electron microscopy , microstructure , annealing (glass) , magnetization , magnetic field , composite material , nanotechnology , physics , quantum mechanics

Lead zirconium titanate/nickel ferrite (PZT/NFO) composites have been produced by crystallizing and spinodally decomposing a gel in a magnetic field below the Curie temperature of NFO. The gel had been formed by spinning a sol onto a silicon substrate. The ensuing microstructure, characterized by atomic force microscopy, magnetic force microscopy, (Lorentz) transmission electron microscopy, and scanning electron microscopy, is nanoscopically periodic and, determined by the direction of magnetic annealing field, anisotropic. The wavelength of the PZT/NFO alternation, 25nm, agrees within a factor of 2 with the theoretically estimated value. The macroscopic ferromagnetic and magnetoelectric responses correspond qualitatively and semiquantitatively to the features of the nanostructure. The maximum of the field dependent magnetoelectric susceptibility equals 1.8V∕cmOe.

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