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    Small dc magnetic field response of magnetoelectric laminate composites

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    Downloads: 1001
    Date
    2006-02-01
    Author
    Dong, Shuxiang
    Zhai, Junyi
    Li, Jiefang
    Viehland, Dwight D.
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    Abstract
    We have found that small long-type magnetoelectric (ME) laminate composites of magnetostrictive Tb1-xDyxFe2-y and piezoelectric Pb(Zr,Ti)O-3 are quite sensitive to small dc magnetic field (H-dc) variations, when driven by a constant ac magnetic field. The sensitivity limit is H-dc < 10(-3) Oe (10(-7) Tesla) using a constant amplitude low frequencies drive, and H-dc < 10(-4) Oe (10(-8) Tesla) under resonant drive. In addition, an unusual ME switching effect-a 180 degrees phase shift-was observed, in response to changes in the sign of a small H-dc. (c) 2006 American Institute of Physics.
    URI
    http://hdl.handle.net/10919/25273
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    • Scholarly Works, Materials Science and Engineering (MSE) [394]

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