Structural and Multiferroic Properties of Bi3.4La0.6Ti3O12/CoFe2O4 Composite Thin Films
| Autor: | Arun Kumar, A. Charris-Hernández, D. Barrionuevo, Maharaj S. Tomar |
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| Rok vydání: | 2014 |
| Předmět: |
Permittivity
Diffraction Spin coating Materials science Condensed Matter Physics Electronic Optical and Magnetic Materials Nuclear magnetic resonance Ferromagnetism Control and Systems Engineering Electric field Materials Chemistry Ceramics and Composites Multiferroics Crystallite Electrical and Electronic Engineering Composite material Ohmic contact |
| Zdroj: | Integrated Ferroelectrics. 157:63-70 |
| ISSN: | 1607-8489 1058-4587 |
| Popis: | Bi3.4La0.6Ti3O12 and CoFe2O4 were synthesized by chemical solution route, and Bi3.4La0.6Ti3O12/CoFe2O4 multilayers were deposited by spin coating on Pt substrate. X-ray diffraction of multilayer structures reveals composite-like polycrystalline film. Leakage current is less than 10−5 A at electric field < 90 KV/cm and follows the Ohmic behavior. Dielectric response shows relaxation and the loss (tan δ) is below 3% at 106 Hz. Room temperature ferrroelectric polarization (Pr) = 20.2 μC/cm2 and ferromagnetic memory (Mr) = 46.5 emu/cm3 has been obtained. Co-existence of FE and FM response can be attributed to stress and different permeability and permittivity involved in multilayer structures. |
| Databáze: | OpenAIRE |
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