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Ferroelectrics Letters Section Volume 38, 2011 - Issue 1-3
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Original Articles

Switching Kinetics in Cesium Nitrate: Poly (Vinyl Alcohol) Composite Film

Arvind Nautiyal Ferroelectric Materials and Devices Research Labortory, Department of Physics, Indian Institute of Technology Roorkee, Roorkee- 247667, (Uttrakhand), India
,
Navneet Dabra Applied Physics and Materials Science Laboratory, Department of Applied Sciences, Baba Farid College of Engineering and Technology, Bathinda 151001, Punjab State, India
,
K. C. Sekhar Ferroelectric Materials and Devices Research Labortory, Department of Physics, Indian Institute of Technology Roorkee, Roorkee- 247667, (Uttrakhand), India
,
Jasbir S. Hundal Materials Science Laboratory, Department of Applied Sciences, Giani Zail Singh College of Engineering and Technology, Bathinda- 151001, Punjab State, India
,
N. P. Pathak Radio Frequency Integrated Circuits Research Laboratory, Department of Electronics & Computer Engineering, Indian Institute of Technology Roorkee, Roorkee- 247667, (Uttrakhand), India
&
R. Nath Ferroelectric Materials and Devices Research Labortory, Department of Physics, Indian Institute of Technology Roorkee, Roorkee- 247667, (Uttrakhand), India
Pages 51-58 | Received 20 Dec 2010, Published online: 16 Jun 2011
 
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Abstract

The effect of pulse amplitude on the switching properties of cesium nitrate: poly (vinyl alcohol) composite film at room temperature has been studied. The switching response of the composite film was studied using the bipolar square pulses. The switching current transients were analyzed using finite grain model (FGM) and infinite grain media (IGM). The Matlab programming based upon the assumptions of FGM and IGM theories is used to fit the experimental data with the theoretical. The microscopic parameters such as effective dimensionality, switching time, nucleation rate, and domain wall velocity have been estimated. The polarization current and domain wall velocity exhibited exponential dependence on the pulse amplitude.

Acknowledgment

The author Arvind Nautiyal acknowledges the financial support provided by Council of Scientific and Industrial Research (CSIR), India.

**Present address: Departmento de Fisica, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal

Communicated by Dr. George W. Taylor

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