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- Title
Magnetoelectric effect of the multilayered CoFeO/BaTiO composites fabricated by tape casting.
- Authors
Zhou, Dongxiang; Hao, Liangbin; Gong, Shuping; Fu, Qiuyun; Xue, Fei; Jian, Gang
- Abstract
This paper presents the structural, ferroelectric, ferromagnetic, resonance and magnetoelectric (ME) properties of multilayered ME composites fabricated using tape casting method. The compositions corresponding to CoFeO (CFO) with particle size of ~150 nm and BaTiO (BTO) with particle size of ~100 nm were chosen as ferromagnetic and ferroelectric phases, respectively. Delamination was found at the interface between CFO and BTO layers, which was related to the residual stress due to the difference in thermal expansion coefficient between the two layers. The largest direct magnetoelectric and converse magnetoelectric coefficients of the multilayered ME composite were, respectively, 36 μV/cm Oe at a bias magnetic field of 2,800 Oe and 1.16 × 10 G/V at a frequency of 30 kHz. In addition, the corresponding interfacial coupling coefficient was calculated to be 3.2 × 10. For the multilayered ME composite, a resonance frequency of 4.96 MHz and a bandwidth of 40 kHz were obtained using capacitance-frequency spectrum method.
- Subjects
MAGNETOELECTRIC effect; FERROMAGNETIC resonance; PARTICLE size determination; MAGNETIC fields; BANDWIDTHS
- Publication
Journal of Materials Science: Materials in Electronics, 2012, Vol 23, Issue 12, p2098
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-012-0706-9