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Benages-Vilau R, Calvet T, Cuevas-Diarte M. Polymorphism, crystal growth, crystal morphology and solid-state miscibility of alkali nitrates. CRYSTALLOGR REV 2013. [DOI: 10.1080/0889311x.2013.838673] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Reddy AV, Sekhar KC, Dabra N, Nautiyal A, Hundal JS, Pathak NP, Nath R. Ferroelectric and Magnetic Properties of Hot-Pressed BiFeO3-PVDF Composite Films. ACTA ACUST UNITED AC 2011. [DOI: 10.5402/2011/142968] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The ferroelectric and magnetic properties of hot-pressed BiFeO3- (BFO) polyvinylidene fluoride (PVDF) composite films have been studied. The BiFeO3 (BFO) ceramics have been synthesized by a rapid liquid phase sintering technique. The X-ray diffraction (XRD) studies revealed that the impure phase observed in pure BFO ceramics was significantly reduced in the composite films. The presence of both ferroelectric and magnetic hysteresis loops confirms the multiferroic nature of the composite films at room temperature. A well-saturated ferroelectric hysteresis loop with a remanent polarization (Pr)∼4.8 μC-cm-2 and coercive field (Ec)∼1.55 kV/cm has been observed in composite thin films at room temperature. The magnetic hysteresis loops were traced at room temperature with SQUID. The remanent magnetization (Mr)∼3.0×10−3 emu/gm and coercive field (Hc)∼0.99 kOe was observed in the composite film. The magnetic polarization of the composite films has found to be enhanced as compared to pure BFO and correlated to reduction in BFO impure peak intensity.
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Affiliation(s)
- Annapu V. Reddy
- Ferroelectric Material and Devices Research Laboratory, Department of Physics, Indian Institute of Technology, Roorkee 247667, India
| | - K. C. Sekhar
- Departamento de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Navneet Dabra
- Applied Physics and Materials Science Laboratory, Department of Applied Sciences, Baba Farid College of Engineering and Technology, Bathinda, Punjab 151001, India
| | - A. Nautiyal
- Ferroelectric Material and Devices Research Laboratory, Department of Physics, Indian Institute of Technology, Roorkee 247667, India
| | - Jasbir S. Hundal
- Materials Science Laboratory, Department of Applied Sciences, Giani Zail Singh College of Engineering and Technology, Bathinda 151001, Punjab, India
| | - N. P. Pathak
- Radio Frequency Integrated Circuits Research Laboratory, Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee 247667, India
| | - R. Nath
- Ferroelectric Material and Devices Research Laboratory, Department of Physics, Indian Institute of Technology, Roorkee 247667, India
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