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Please use this identifier to cite or link to this item: http://purl.org/purl/3659

Title: Electrical And Photoacoustic Studies On Phase Transitions In Certain Ammonium Containing Crystals
Authors: Navil Kumar, R
Dr.Girijavallabhan,C P
Keywords: Thermodynamic aspects of phase transition
Crystal growth
Electrical Conductivity
;Dielectric Constant
Issue Date: 28-Jun-1989
Publisher: Cochin University Of Science And Technology
Abstract: In the present thesis a series of exhaustive investigations have been carried out on a number of crystalline samples with special reference tx> the jphase transitions exhibited by them. These include single crystals of pure, doped or deuterated specimens of certain ammonium containing crystals viz., (NH )34H(SO4)2, (NH4)2HPO4, (NH4)2Cr2O7 znui NH4H2PO4. ac/dc electrical conductivity, dielectric constant, ionic thermocurrent as wwifil as photoacoustic measurements have been carried out on most of them over a wide range of temperature. In addition investigations have been carried out in pure and doped single crystals of NaClO3 and NaNO3 using ionic thermocurrent measurements and these are presented here. Special attention has been paid to reveal the mechanism of electrical conduction in various phases of "these crystals and to evaluate the different parameters involved in the conduction as well as phase transition process. The thesis contains ten chapters ‘
Description: Department of Physics, Cochin University of Science and Technology
URI: http://dyuthi.cusat.ac.in/purl/3659
Appears in Collections:Faculty of Sciences

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