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Electric field-controlled permeability and impedance in a heterotypic composite of ferroelectrics/magnet with high permeability

Zhang Ning Gao Jian-Sen

Electric field-controlled permeability and impedance in a heterotypic composite of ferroelectrics/magnet with high permeability

Zhang Ning, Gao Jian-Sen
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  • Received Date:  04 January 2009
  • Accepted Date:  28 April 2009
  • Published Online:  20 December 2009

Electric field-controlled permeability and impedance in a heterotypic composite of ferroelectrics/magnet with high permeability

  • 1. (1)南京师范大学物理科学与技术学院,南京 210097; (2)宿迁学院基础教学部,宿迁 223800

Abstract: Using the product effect of electrostrain and piezopermeability, a novel and heterotypic composite of magnet/ferroelectrics has been developed and its electromagnetic coupling has been investigated. Under a constant electric field of 5 kV/cm, about 40% electric-field-induced changes of inductance and impedance have been observed over a wide range of frequency for the composites. The electric-field dependent inductance and impedance show a joint behavior of ferromagnetic and ferroelectric relaxation. Analysis shows that all the behaviors observed can be ascribed to the electric field-controlled variation of the internal stress in the composite.

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