期刊
JOURNAL OF APPLIED PHYSICS
卷 107, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3359650
关键词
bismuth compounds; cobalt compounds; crystal orientation; epitaxial layers; ferroelectric thin films; ferromagnetic materials; magnetisation; magnetoelectric effects; multiferroics; nanocomposites; permittivity; piezoelectricity; self-assembly
资金
- U.S. Department of Energy [DE.-AC02-98CH10886]
- Office of the Air-Force Office of Scientific Research [FA 9550-06-1-0410]
We report the ferroelectric, ferromagnetic, and magnetoelectric (ME) properties of self-assembled epitaxial BiFeO3-CoFe2O4 (BFO-CFO) nanostructure composite thin films deposited on (001), (110), and (111) SrTiO3 (STO) single crystal substrates. These various properties are shown to depend on orientation. The maximum values of the relative dielectric constant, saturation polarization, longitudinal piezoelectric coefficient, saturation magnetization, and ME coefficient at room temperature were 143, 86 mu m/cm(2), 50 pm/V, 400 emu/cc, and 20 mV/cm Oe, respectively.
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