Physics – Condensed Matter – Materials Science
Scientific paper
2003-07-13
Applied Physics A (Jan. 2003)
Physics
Condensed Matter
Materials Science
Scientific paper
10.1007/s00339-002-1987-2
Thick film layered magnetoelectric composites consisting of ferromagnetic and ferroelectric phases have been synthesized with nickel ferrite (NFO), cobalt ferrite (CFO), La0.7Sr0.3MnO3 (LSMO), or La0.7Ca0.3MnO3 (LCMO) and lead zirconate titanate (PZT). Structural, magnetic and ferromagnetic resonance characterization shows evidence for defect free ferrites, but deterioration of manganite parameters. The resistivity and dielectric constants are smaller than expected values. The magnetoelectric effect (ME) is stronger in ferrite-PZT than in manganite-PZT. The ME voltage coefficient aE at room temperature is the highest in NFO-PZT and the smallest for LCMO-PZT. The transverse ME effect is an order of magnitude stronger than the longitudinal effect. The magnitude of aE correlates well with magnetic permeability for the ferrites.
Bush A. A.
Fetisov Y. K.
Kamentsev K. E.
Meshcheryakov V. F.
Rasmussen E. T.
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