Giant magnetodielectric effect in Terfenol-DPZT magnetoelectric laminate composite

Y. P. Yao; Y. Hou; S. N. Dong; X. G. Li

doi:10.1063/1.3603042

Giant magnetodielectric effect in Terfenol-DPZT magnetoelectric laminate composite

Y. P. Yao
, Y. Hou
, S. N. Dong
, X. G. Li

Penn State University Park

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

The magnetic field dependence of the dielectric permittivity of Terfenol-DPbZr_xTi_1-xO₃ magnetoelectric composites in the temperature range from 200 K to 340 K was investigated systematically. It was found that there is a large magnetodielectric effect up to 15 around the electromechanical resonance frequency in a magnetic field of 5 kOe at room temperature. Nonmonotonic variations of dielectric permittivity with magnetic fields are associated with the mechanical energy loss due to magnetic domain wall motion in the magnetostrictive layer Terfenol-D. A numerical modeling is proposed and agrees well with the experimental data. The results are of significance in the development of magnetic-field-tuned electronic devices at room temperature.

Original language	English (US)
Article number	014508
Journal	Journal of Applied Physics
Volume	110
Issue number	1
DOIs	https://doi.org/10.1063/1.3603042
State	Published - Jul 1 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.3603042

Cite this

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title = "Giant magnetodielectric effect in Terfenol-DPZT magnetoelectric laminate composite",

abstract = "The magnetic field dependence of the dielectric permittivity of Terfenol-DPbZrxTi1-xO3 magnetoelectric composites in the temperature range from 200 K to 340 K was investigated systematically. It was found that there is a large magnetodielectric effect up to 15 around the electromechanical resonance frequency in a magnetic field of 5 kOe at room temperature. Nonmonotonic variations of dielectric permittivity with magnetic fields are associated with the mechanical energy loss due to magnetic domain wall motion in the magnetostrictive layer Terfenol-D. A numerical modeling is proposed and agrees well with the experimental data. The results are of significance in the development of magnetic-field-tuned electronic devices at room temperature.",

author = "Yao, \{Y. P.\} and Y. Hou and Dong, \{S. N.\} and Li, \{X. G.\}",

note = "Funding Information: This work was supported by the National Science Foundation of China (NSFC), the National Basic Research Program (2009CB929502 and 2011CBA00102), and the Chinese Academy of Sciences (CAS).",

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doi = "10.1063/1.3603042",

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AU - Yao, Y. P.

AU - Hou, Y.

AU - Dong, S. N.

AU - Li, X. G.

N1 - Funding Information: This work was supported by the National Science Foundation of China (NSFC), the National Basic Research Program (2009CB929502 and 2011CBA00102), and the Chinese Academy of Sciences (CAS).

PY - 2011/7/1

Y1 - 2011/7/1

N2 - The magnetic field dependence of the dielectric permittivity of Terfenol-DPbZrxTi1-xO3 magnetoelectric composites in the temperature range from 200 K to 340 K was investigated systematically. It was found that there is a large magnetodielectric effect up to 15 around the electromechanical resonance frequency in a magnetic field of 5 kOe at room temperature. Nonmonotonic variations of dielectric permittivity with magnetic fields are associated with the mechanical energy loss due to magnetic domain wall motion in the magnetostrictive layer Terfenol-D. A numerical modeling is proposed and agrees well with the experimental data. The results are of significance in the development of magnetic-field-tuned electronic devices at room temperature.

AB - The magnetic field dependence of the dielectric permittivity of Terfenol-DPbZrxTi1-xO3 magnetoelectric composites in the temperature range from 200 K to 340 K was investigated systematically. It was found that there is a large magnetodielectric effect up to 15 around the electromechanical resonance frequency in a magnetic field of 5 kOe at room temperature. Nonmonotonic variations of dielectric permittivity with magnetic fields are associated with the mechanical energy loss due to magnetic domain wall motion in the magnetostrictive layer Terfenol-D. A numerical modeling is proposed and agrees well with the experimental data. The results are of significance in the development of magnetic-field-tuned electronic devices at room temperature.

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Giant magnetodielectric effect in Terfenol-DPZT magnetoelectric laminate composite

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