High Pressure Study of Rare-Earth Compounds of La,Pr,Yb: Cohesive, phase transition, elastic and thermophysical properties at normal and high pressures

Gupta, Dinesh C., Raypuria, Gajendra Singh

ISBN 10: 3846582786 / ISBN 13: 9783846582787

Published by LAP LAMBERT Academic Publishing, 2012

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Bibliographic Details

• Title: High Pressure Study of Rare-Earth Compounds of La,Pr,Yb: Cohesive, phase transition, elastic and thermophysical properties at normal and high pressures
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2012
• Language: English
• ISBN 10: 3846582786
• ISBN 13: 9783846582787
• Binding: Paperback
• Condition: Like New
• Book Type: book

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Synopsis

The work has been performed by developing a model potential which includes effects due to covalency, charge transfer due to outer most electrons of the cation and zero point energy interactions. The potential is used to derive expressions for second- and third-order elastic constants (SOECs and TOECs), thermo-physical properties and pressure derivatives of SOECs. The computed results are capable to explain successfully the SOECs,Cauchy’s discrepancy in SOECs and their pressure derivatives, phase transition pressures, volume collapse, and thermal properties. The present results are close to experimental data and better than those computed earlier by others. Present model potential can be used for the similar properties of other compounds too.

About the Author

Dr. Gupta obtained Ph.D. from Bhopal Universityin 1991. He got many awards & fellowships. He has been Junior Associate of Abdus Salam ICTP, Italy. 7 Ph.D. and 8 M.Phil. have been awarded under him. He has published 140 papers in international journals and conferences. He has interest in theoretical materials science at normal & high pressures.