Fe–Ga/Pb(Mg1/3Nb2/3)O3–PbTiO3 magnetoelectric laminate composites

We have found large magnetoelectric (ME) effects in long-type laminate composites of Fe–20%Ga magnetostrictive alloys and piezoelectric Pb(Mg1∕3Nb2∕3)O3–PbTiO3 single crystals. At lower frequencies, the ME voltage coefficient of a laminate with longitudinally magnetized and longitudinally polarized (i.e., L-L mode) layers was 1.41V∕Oe (or 1.01V∕cmOe). Near the natural resonant frequency (∼91kHz) of the laminate, the ME voltage coefficients were found to be dramatically increased to 50.7V∕Oe (36.2V∕cmOe) for the L-L mode. In addition, the laminate can detect a minute magnetic field as low as ∼2×10−12T at resonance frequency, and ∼1×10−10T at lower frequencies.

[1]  Frequency dependence of magnetoelectric interactions in layered structures of ferromagnetic alloys and piezoelectric oxides , 2003, cond-mat/0307208.

[2]  S. Matteo,et al.  Magnetoelectricity in V 2 O 3 , 2002 .

[3]  S. Dong,et al.  Vortex magnetic field sensor based on ring-type magnetoelectric laminate , 2004 .

[4]  S. Guruswamy,et al.  Influence of ordering on the magnetostriction of Fe–27.5 at. % Ga alloys , 2002 .

[5]  Marilyn Wun-Fogle,et al.  Magnetostrictive properties of body-centered cubic Fe-Ga and Fe-Ga-Al alloys , 2000 .

[6]  S. Dong,et al.  Ultrahigh magnetic field sensitivity in laminates of TERFENOL-D and Pb(Mg1/3Nb2/3)O3–PbTiO3 crystals , 2003 .

[7]  C. Nan,et al.  Calculations of giant magnetoelectric effects in ferroic composites of rare-earth-iron alloys and ferroelectric polymers , 2001 .

[8]  Sivaraman Guruswamy,et al.  Large magnetostriction in directionally solidified FeGa and FeGaAl alloys , 2001 .

[9]  Shuxiang Dong,et al.  Piezoelectric ultrasonic micromotor with 1.5 mm diameter , 2003, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[10]  T. Lograsso,et al.  Magnetism, elasticity, and magnetostriction of FeCoGa alloys , 2003 .

[11]  S. Dong,et al.  A longitudinal-longitudinal mode TERFENOL-D∕Pb(Mg1∕3Nb2∕3)O3–PbTiO3 laminate composite , 2004 .

[12]  Marilyn Wun-Fogle,et al.  Extraordinary magnetoelasticity and lattice softening in bcc Fe-Ga alloys , 2003 .

[13]  A. V. Carazo,et al.  Magnetoelectric Properties in Piezoelectric and Magnetostrictive Laminate Composites , 2001 .

[14]  G. Srinivasan,et al.  Magnetoelectric effects in ferrite-lead zirconate titanate layered composites: The influence of zinc substitution in ferrites , 2003 .

[15]  T. Lograsso,et al.  Magnetostrictive and magnetoelectric behavior of Fe–20 at. % Ga/Pb(Zr,Ti)O3 laminates , 2005 .

[16]  G. Lu,et al.  Circumferential-mode, quasi-ring-type, magnetoelectric laminate composite—a highly sensitive electric current and∕or vortex magnetic field sensor , 2005 .

[17]  R. Wu.  Origin of large magnetostriction in FeGa alloys , 2002 .

[18]  S. Priya,et al.  High Magnetoelectric Properties in 0.68Pb(Mg 1/3 NB 2/3 )O₃-0.32PbTiO₃ Single Crystal and Terfenol-D Laminate Composites , 2002 .

[19]  V. Mathe,et al.  Electrical properties and magnetoelectric effect in Ni0.75Co0.25Fe2O4+Ba0.8Pb0.2TiO3 composites , 2003 .

[20]  G. Srinivasan,et al.  Magnetoelectric effects in bilayers and multilayers of magnetostrictive and piezoelectric perovskite oxides , 2002 .