Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/12937
Title: Electrical and photoacoustic studies on phase transitions in certain ammonium containing crystals
Researcher: Navil Kumar R
Guide(s): Girijavallabhan C P
Keywords: Physics
Photoacoustic
Ammonium Containing Crystals
Upload Date: 12-Nov-2013
University: Cochin University of Science and Technology
Completed Date: 28/06/1989
Abstract: This thesis entitled Electrical and Photoacoustic Studies on Phase Transitions in Certain Ammonium Containing Crystals. In the present thesis a series of exhaustive investigations have been carried out on a number of crystalline samples with special reference to the phase transitions exhibited by them. These include single crystals of pure, doped or deuterated specimens of certain ammonium containing crystals viz., (NH4 )3H(SO4)2, (NH4)2HPO4, (NH4)2Cr2O7 and NH4H2PO4. ac/dc electrical conductivity, dielectric constant, ionic thermocurrent as well 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 newlinethese 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.
Pagination: 290p.
URI: http://hdl.handle.net/10603/12937
Appears in Departments:Department of Physics

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01_title page.pdfAttached File55.5 kBAdobe PDFView/Open
02_certificate and declaration.pdf56.24 kBAdobe PDFView/Open
03_preface.pdf101.2 kBAdobe PDFView/Open
04_acknowledgement.pdf64.65 kBAdobe PDFView/Open
05_abstract.pdf7.36 kBAdobe PDFView/Open
06_contents.pdf119.39 kBAdobe PDFView/Open
07_chapter 1.pdf505.55 kBAdobe PDFView/Open
08_chapter 2.pdf2.89 MBAdobe PDFView/Open
09_chapter 3.pdf238.16 kBAdobe PDFView/Open
10_chapter 4.pdf386.89 kBAdobe PDFView/Open
11_chapter 5.pdf365.77 kBAdobe PDFView/Open
12_chapter 6.pdf413.96 kBAdobe PDFView/Open
13_chapter 7.pdf1.11 MBAdobe PDFView/Open
14_chapter 8.pdf429.57 kBAdobe PDFView/Open
15_chapter 9.pdf428.86 kBAdobe PDFView/Open
16_chapter 10.pdf210.15 kBAdobe PDFView/Open


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