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Thermophysical Properties of Cerium and Ytterbium via Local Pseudopotential with Mean Field Potential Approach at Extreme Environment

  • Priyank KumarEmail author
  • N. K. Bhatt
  • P. R. Vyas
  • V. B. Gohel
Article

Abstract

In the present communication, the ion motional contribution (\(\hbox {F}_{\mathrm{ion}}\)) to the total Helmholtz free energy has been accounted for by using mean field potential (MFP) approximation. The MFP is constructed using the local pseudopotential for divalent ytterbium and trivalent cerium. Further, MFP is used to evaluate static as well as temperature-dependent thermodynamic properties of these metals up to their melting temperature. Computed results are compared with experimental findings as well as results obtained by applying other theoretical methods. Present conjunction scheme with its computational simplicity, physical transparency and transferability of local pseudopotential explains the role of pressure-induced interband transfer of electrons which is crucial in the determination of thermodynamic properties of complex metals like lanthanides.

Keywords

Lanthanides Mean field potential Pseudopotential Thermophysical properties 

Notes

Acknowledgements

Authors are thankful for computational facilities developed using financial assistance provided by Department of Sciences and Technology (DST), New Delhi, through the DST-FIST (Level 1) project (SR/FST/PST-001/2006). Authors are also thankful to Dr. Rajesh Iyer (Head, Department of Physics, St. Xavier’s College, Ahmedabad, Gujarat, India), Mr. K. H. Talati (Lecturer in English, Government Polytechnic, Gandhinagar, Gujarat, India) and Mrs. N. V. Chauhan (Lecturer in English, Government Polytechnic, Gandhinagar, Gujarat, India) for their careful observation and making suggestions and corrections to improve the language and readability of the manuscript.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Priyank Kumar
    • 1
    Email author
  • N. K. Bhatt
    • 2
  • P. R. Vyas
    • 3
  • V. B. Gohel
    • 3
  1. 1.Department of ScienceGovernment PolytechnicGandhinagarIndia
  2. 2.Department of PhysicsM. K. Bhavanagar UniversityBhavanagarIndia
  3. 3.Department of Physics, School of ScienceGujarat UniversityAhmedabadIndia

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