Physics – Condensed Matter – Materials Science
Scientific paper
2004-01-30
Physics
Condensed Matter
Materials Science
4 pages, 4 figures; presented at NATO Advanced Research Workshop (MEIPIC-5), Sudak (Ukraine)
Scientific paper
Frequency dependence of magnetoelectric (ME) coupling is investigated in trilayers of ferromagnetic alloy and piezoelectric lead zirconate titanate (PZT). The ferromagnetic phases studied include permendur, a soft magnet with high magnetostriction, iron, nickel, and cobalt. Low frequency data on ME voltage coefficient versus bias magnetic field indicate strong coupling only for trilayers with permendure or Ni. Measurements of frequency dependence of ME voltage reveal a giant ME coupling at electromechanical resonance. The ME interactions for transverse fields is an order of magnitude stronger than for longitudinal fields. The maximum voltage coefficient of 90 V/cm Oe at resonance is measured for samples with nickel or permendure and is three orders of magnitude higher than low-frequency values.
Bichurin M. I.
Laletsin U.
Paddubnaya N. N.
Srinivasan Ganesan
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