Co-fired magnetoelectric transformer

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 473 mV/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 1.4 Hz/Oe. These results present significant advancement towards developing on-chip magnetic-field-tunable devices.

[1]  L. Qiao,et al.  Peak divergence in the curve of magnetoelectric coefficient versus dc bias magnetic field at resonance region for bi-layer magnetostrictive/piezoelectric composites , 2013 .

[2]  Shashank Priya,et al.  Dual-phase self-biased magnetoelectric energy harvester , 2013 .

[3]  Shashank Priya,et al.  Giant self-biased magnetoelectric coupling in co-fired textured layered composites , 2013 .

[4]  S. Priya,et al.  Cofired Magnetoelectric Laminate Composites , 2011 .

[5]  Huaiwu Zhang,et al.  Controlling voltage step-up ratio of Rosen-type transformer based on magnetoelectric coupling , 2011 .

[6]  Neil D. Mathur,et al.  Magnetically tuned mechanical resonances in magnetoelectric multilayer capacitors , 2009 .

[7]  D. Viehland,et al.  Tunable features of magnetoelectric transformers , 2009, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[8]  S. Priya,et al.  Magnetoelectric laminate based DC magnetic field sensor , 2008 .

[9]  S. Dong,et al.  Magnetoelectric Laminate Composites: An Overview , 2008 .

[10]  S. Dong,et al.  Recent advancements in magnetoelectric particulate and laminate composites , 2007 .

[11]  S. Priya,et al.  Working principle of voltage controlled differential magnetic field sensor , 2007 .

[12]  S. Priya,et al.  Piezoelectric transformer based ultrahigh sensitivity magnetic field sensor , 2006 .

[13]  S. Priya,et al.  High power universal piezoelectric transformer , 2006, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[14]  F. Bai,et al.  Push-pull mode magnetostrictive/piezoelectric laminate composite with an enhanced magnetoelectric voltage coefficient , 2005 .

[15]  V. M. Petrov,et al.  Resonant magnetoelectric coupling in trilayers of ferromagnetic alloys and piezoelectric lead zirconate titanate: The influence of bias magnetic field , 2005 .

[16]  Jinrong Cheng,et al.  A strong magnetoelectric voltage gain effect in magnetostrictive-piezoelectric composite , 2004 .

[17]  Kenji Uchino,et al.  Multilayered Unipoled Piezoelectric Transformers , 2004 .

[18]  I. Im,et al.  Parallel Driving of Piezoelectric Transformers , 1999 .

[19]  R. Street,et al.  The Interpretation of Magnetic Susceptibility and the ΔE Effect in Terms of Domain Processes , 1958 .