Abstract
The Ni layers with good soft magnetic properties have been successfully electroless deposited on PZT layers. To study the thermodynamics and kinetics of electroless Ni -deposition, the effect of bath parameters such as pH and temperature has been discussed. The structural, magnetic and magnetostrictive properties of Ni layers deposited at various pH and temperature are characterized by X-ray diffraction, transmission electron microscopy, vibrating sample magnetometer and standard strain-gauge technique. The grain size, deposition rate, magnetic properties and magnetostrictive properties of Ni layers and magnetoelectric effect of Ni /PZT/ Ni trilayers depend strongly on the thermodynamics and kinetics of electroless deposition processes. A maximum ME voltage coefficient of αE,31 = 5.8 V cm-1 Oe-1 is obtained at a frequency of about 101 kHz. These trilayers exhibit a promising potential in actuators, transducers and sensors.
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