Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 496, Issue 1-2, Pages L4-L6Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.02.029
Keywords
Magnetoelectric effect; Magnetoelectric composite; Lead-free NBT-BT single crystal; Terfenol-D magnetostrictive alloy
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Funding
- People's Republic of China [2008AA03Z410]
- Natural Science Foundation of China [50432030, 50777065, 50602047]
- Chinese Academy of Sciences [KGCX2-YW-111-7]
- Shanghai Municipal Government [06DZ05016]
- Shanghai Institute of Ceramics of Chinese Academy of Sciences [SCX0608]
- Research Grants Council of the HKSAR Government [PolyU 5266/08E]
- HKSAR Government [GHP/003/06]
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A lead-free magnetoelectric (ME) laminate composite consisting of thickness-polarized piezoelectric Mn-doped Na0.5Bi0.5TiO3-BaTiO3 single crystal and length-magnetized magnetostrictive Tb0.3DY0.7Fe1.92 alloy (L-T mode), have been fabricated and its ME properties has been evaluated. The results revealed that the lead-free composite has linear magnetic-electric response in excess of 1.32 V/cm Oe at low frequency over the range of 10(-7)T < H-ac < 10(-3) T, the ME coefficient dramatically increases and reaches the maximized value of 18V/cm Oe near the resonance frequency of 160 kHz. This heterostructure opens up the possibility for environment-friendly magnetic sensors. (C) 2010 Elsevier B.V. All rights reserved.
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