期刊
APPLIED PHYSICS LETTERS
卷 104, 期 23, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4883492
关键词
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资金
- AFOSR through YIP grant
- Office of Basic Energy Science, Department of Energy [DE-FG02-06ER46290]
In this study, we demonstrate a co-fired magnetoelectric (ME) laminate consisting of piezoelectric/ magnetostrictive/piezoelectric layers with unipoled piezoelectric transformer structure. The ME transformer was characterized by quantifying the voltage gain variation and resonance frequency shift as a function of applied DC magnetic field. We delineate the magnetic tunability feature by considering the magnetoelectric coupling and delta-E effect, where E represents the modulus of magnetic material. The ME response of the composite structure was found to be 473mV/cm. Oe exhibiting DC field sensitivity of 100 nT under AC field of 1 Oe at 1 kHz. At a magnetic bias of 60 Oe, the transformer exhibited large frequency tunability of the order of 1.4Hz/Oe. These results present significant advancement towards developing on-chip magnetic-field-tunable devices. (C) 2014 AIP Publishing LLC.
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