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Detection of pico-Tesla magnetic fields using magneto-electric sensors at room temperature
(AIP Publishing, 2006-02-01)
The measurement of low-frequency (10(-2)-10(3) Hz) minute magnetic field variations (10(-12) Tesla) at room temperature in a passive mode of operation would be critically enabling for deployable neurological signal interfacing ...
Giant magnetoelectric effect in Metglas/polyvinylidene-fluoride laminates
(AIP Publishing, 2006-08-01)
Here, the authors report thin (< 100 mu m) and flexible magnetoelectric (ME) composites consisting of Metglas (high-mu magnetostriction) and polyvinylidene-fluoride (piezopolymer) layers laminated together. Both unimorph ...
Resonant bending mode of Terfenol-D/steel/Pb(Zr,Ti)O-3 magnetoelectric laminate composites
(AIP Publishing, 2006-09-01)
Resonant bending-mode Tb1-xDyxFe2-y/elastic-steel/Pb(Zr,Ti)O-3 magnetoelectric (ME) laminate composites have been investigated. An elastic-steel layer with a relatively high Q(m) significantly increases the resonant ...
Geomagnetic sensor based on giant magnetoelectric effect
(AIP Publishing, 2007-09-01)
Here, the authors report a new type of geomagnetic field sensor based on the giant magnetoelectric effect in Metglas/piezoelectric-fiber laminates that are wrapped with a coil. These sensors can measure quite precisely the ...
Thermal noise cancellation in symmetric magnetoelectric bimorph laminates
(AIP Publishing, 2008-08-01)
We have found a symmetric Terfenol-D/Pb(Zr,Ti)03 (PZT) bimorph magnetoelectric (ME) laminate, which operates in a bending mode under an unsymmetrical (U-shaped) magnetic bias. It has a giant ME voltage coefficient of about ...
Giant magnetoelectric effect (under a dc magnetic bias of 2 Oe) in laminate composites of FeBSiC alloy ribbons and Pb(Zn-1/3,Nb-2/3)O-3-7%PbTiO3 fibers
(AIP Publishing, 2007-07-01)
Giant magnetoelectric (ME) voltage and charge coefficients have been found in long-type composites of high-permeability magnetostrictive FeBSiC alloy ribbons laminated together with piezoelectric Pb(Zn-1/3,Nb-2/3)O-3-7%PbTiO3 ...
Enhancement in the field sensitivity of magnetoelectric laminate heterostructures
(AIP Publishing, 2009-08-01)
The effect of magnetostrictive layer thickness on the magnetoelectric (ME) response and field sensitivity of Pb(Zr,Ti)O(3)-metglas based sandwiched ME heterostructures has been studied. Such structures hold promise for ...
Extremely low frequency response of magnetoelectric multilayer composites
(AIP Publishing, 2005-03-01)
A promising generation of extremely low frequency magnetic field sensors, based on multilayer composites (MLCs) of magnetostrictive Terfenol-D, (Tb(1-x)Dy(x)Fe(2-y)) and piezoelectric Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3), has ...
Noise and scale effects on the signal-to-noise ratio in magnetoelectric laminate sensor/detection units
(AIP Publishing, 2007-10-01)
We have investigated the output noise level (E-no) and signal-to-noise ratio (SNR) for various magnetoelectric (ME) laminate composites. Our findings show (i) that E-no is nearly independent of materials couple or operational ...
Giant magnetoelectric effect in Pb(Zr,Ti)O(3)-bimorph/NdFeB laminate device
(AIP Publishing, 2008-07-01)
A Pb(Zr,Ti)O(3)-bimorph/NdFeB laminate device has a giant magnetoelectric (ME) effect. Our results reveal a giant ME coefficient of 16 V/cm Oe or 62 nC/cm Oe at a low (subresonant) frequency of 10 Hz, and one of 250 V/cm ...