Eur. Phys. J. Appl. Phys.
Volume 59, Number 2, August 2012
|Number of page(s)||7|
|Section||Nanomaterials and Nanotechnologies|
|Published online||17 August 2012|
Magnetoelectric characteristics of Dy2.8Sr0.2Fe5O12 garnet (DySrIG)
Materials Science Laboratory (1), Physics Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
2 Physics Department, Faculty of Girls for Art, Science and Education, Ain Shams University, 11757 Cairo, Egypt
a e-mail: firstname.lastname@example.org
Revised: 21 April 2012
Accepted: 9 May 2012
Published online: 17 August 2012
The effect of dc magnetic field on the capacitance, impedance and resistance of Dy2.8Sr0.2Fe5O12 (DySrIG) prepared using the citrate-nitrate auto-combustion method was studied at room temperature. The measurements were carried out in two ways; the first one in which the dc magnetic field and the ac electric field are parallel (//) to each other and the second one in which the magnetic field and ac electric fields are perpendicular (⊥) to each other. The magnetoimpedance of Dy2.8Sr0.2Fe5O12 increases by about 80% in the (⊥) case (at 1650 Oe and 450 kHz) with respect to its values at zero magnetic field. The results of the study encourage the use of this garnet nanomaterial in magnetic sensors, in new devices including tunable filter and spintronic applications.
© EDP Sciences, 2012
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