Virginia Tech. Department of Materials Science and Engineering. Center for Energy Harvesting Materials and Systems (CEHMS)Park, Chee-SungAhn, Cheol-WooYang, Su-ChulPriya, Shashank2015-05-212015-05-212009-12-01Park, Chee-Sung, Ahn, Cheol-Woo, Yang, Su-Chul, Priya, Shashank (2009). Dimensionally gradient magnetoelectric bimorph structure exhibiting wide frequency and magnetic dc bias operating range. Journal of Applied Physics, 106(11). doi: 10.1063/1.32537390021-8979http://hdl.handle.net/10919/52454We report results on a dimensionally gradient magnetoelectric (ME) sensor that demonstrates high performance over a wide frequency range and a magnetic dc bias operating in the longitudinal-transversal mode. The design of the sensor is based on a piezoelectric bimorph structure and utilizes a laminate configuration with Pb(Zn1/3Nb2/3)(0.2)(Zr0.5Ti0.5)(0.8)O-3 and Metglas as material layers. The wide-band behavior was characterized by a flat ME response over a wide range of magnetic dc biases corresponding to 60-215 Oe and frequencies corresponding to 7-22 kHz. By using tip mass, the wide-band frequency response was shifted to a lower frequency range of 5-14 kHz. The results show that the operating frequency range of the sensor can be easily shifted by changing the tip mass at the end of the composite.6 pagesapplication/pdfen-USIn CopyrightLaminatesComposite materialsPiezoelectric filmsPiezoelectric materialsCapacitanceArticle - Refereedhttp://scitation.aip.org/content/aip/journal/jap/106/11/10.1063/1.3253739https://doi.org/10.1063/1.3253739