Magnetoelectric effect in amorphous FeNiSiC ferromagnet-piezoelectric planar structures |
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Authors: | L Y Fetisov Y K Fetisov N S Perov D V Chashin |
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Institution: | 1.Moscow State University,Moscow,Russia;2.Moscow Institute of Radio Engineering Electronics, and Automation (Technical University),Moscow,Russia |
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Abstract: | The magnetoelectric (ME) effect is studied in composite two- and three-layer disk structures containing magnetostriction layers
of an amorphous FeNiSiC ferromagnet and a lead zirconate titanate piezoelectric layer. Due to a high magnetostriction (∼33
× 10−6) and a low saturation field (∼200 Oe), an FeNiSiC layer has a high piezomagentic coefficient, which results in an effective
ME coupling in low fields (∼25 Oe). The ME effect is ∼0.2 V cm−1 Oe−1 at a low frequency and increases to 11.9 and 13.2 V cm−1 Oe−1 when bending and in-plane mechanical vibrations are excited in a resonance manner in the structures at frequencies of ∼8.2
and ∼170.0 kHz, respectively. Structures containing amorphous FeNiSiC layers are promising for magnetic field transducers
and electric energy generators and converters. |
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Keywords: | |
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