期刊
APPLIED PHYSICS LETTERS
卷 94, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3138138
关键词
bismuth compounds; cobalt compounds; dielectric polarisation; magnetic epitaxial layers; magnetic hysteresis; magnetoelectric effects; nanocomposites; piezoelectric thin films
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 direct measurement of a magnetoelectric (ME) exchange between magnetostrictive CoFe2O4 nanopillars in a piezoelectric BiFeO3 matrix for single-layer nanocomposite epitaxial thin films grown on (001) SrTiO3 substrates with SrRuO3 bottom electrodes. The ME coefficient was measured by a magnetic cantilever method and had a maximum value of similar to 20 mV/cm Oe. The films possessed saturation polarization (60 mu C/cm(2)) and magnetization (410 emu/cc) properties equivalent to bulk values, with typical hysteresis loops.
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