Magnetoelectric Properties of Two-Layered Composites Tb_0.12Dy_0.2Fe_0.68 – PbZr_0.53Ti_0.47O₃

Abstract

At frequencies of the measuring magnetic field of 9.9–253 kHz over a temperature range from 79 K to 289 K the magnetoelectric effect in two-layered ferromagnetic-piezoelectric composites Tb_0.12Dy_0.2Fe_0.68 – PbZr_0.53Ti_0.47O₃ with ferromagnetic Tb_0.12Dy_0.2Fe_0.68 and piezoelectric PbZr_0.53Ti_0.47O₃ layers of 6 × 6 × А mm³ (A = 0.6, 0.9, and 1.2) and 8 × 6 × 0.3 mm³ in size, respectively, has experimentally been studied. Resonant frequencies of bending and longitudinal oscillations of composite samples of Tb_0.12Dy_0.2Fe_0.68 – PbZr_0.53Ti_0.47O₃ have been calculated. We have studied dependences of the magnetoelectric effect in composites on a frequency of the measuring magnetic field, a thickness of a Tb_0.12Dy_0.2Fe_0.68 layer, the bias magnetic field strength, and temperature.

Keywords:

• Magnetoelectric effect
• two-layered composite
• lead zirconate titanate
• terfenol-D

Acknowledgment

The work has been executed with the financial support of the Russian Foundation for Basic Research (grant no. 13-02-00663).