Transactions of the Indian Institute of Metals

, Volume 67, Issue 5, pp 781–786 | Cite as

Lattice Dynamical Properties in YS, LaS and CeSe Compounds

  • B. S. Arya
  • Mahendra Aynyas
  • Archana Singh
  • Sankar P. Sanyal
Technical Note
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Abstract

Phonon properties in YS, LaS and CeSe have been studied by a using breathing shell model which includes breathing motion of electrons of Y, La and Ce atoms due to f–d hybridization. The dispersion curves for optical branches in almost all symmetry directions and the acoustic branches along the Λ, Σ and Δ directions are reproduced fairly well. We discuss the significance of this approach in predicting the phonon dispersion curves of these compounds and examine the role of electron–phonon interactions. We also report, for the first time, the one phonon density of states and the lattice specific heat for these compounds.

Keywords

Phonon dispersion Phonon density of states Specific heat Acoustic phonon 
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Notes

Acknowledgments

The work has been financially support by University Grants Commission and MPCST. The authors are thankful to department of higher education, Bhopal for providing facilities.

References

  1. 1.
    Seddik T, Khenata R, Bouhemadou A, Reshak Ali H, Semari F, and Amrani B; Comp Matter Science 49 (2010) 372.CrossRefGoogle Scholar
  2. 2.
    Bendict U, J Alloys Comp 223 (1995) 216.CrossRefGoogle Scholar
  3. 3.
    Vaitheeswaran G, Kanchana V, Heathman S S, Indiri M, Le Bihan T, Swane A, Delin A, and Johansson B; Phy. Rev B 75 (2007) 184108.CrossRefGoogle Scholar
  4. 4.
    Srivastava V, Bandyopadhyay A K, Jha P K, and Sanyal S P; J Phys Chem Solids 64 (2003) 907.CrossRefGoogle Scholar
  5. 5.
    Roedhammer P, Reichardt W, and Holtzberg F, Phys Re Lett 40 (1978) 465.CrossRefGoogle Scholar
  6. 6.
    Weber W, Physics Rev B, 8 (1973) 5082.CrossRefGoogle Scholar
  7. 7.
    Steiner M M, Eschrig H, and Monnier R, Phys Rev B 45 (1992) 7183.CrossRefGoogle Scholar
  8. 8.
    Modukuru Y, Thachery J, Tang H, Malhotra A, Cahay M, and Boolchand P, J Vac Technol B19 (2001) 1958.CrossRefGoogle Scholar
  9. 9.
    Reichardt W (unpublished).Google Scholar
  10. 10.
    Donni A, Furrer A, Buhrer W, and Hulliger F (unpublished).Google Scholar
  11. 11.
    Bilz H, Guntherdot G, Kleppmann W, and Kress W, Phys Rev Lett 43 (1978) 1998.CrossRefGoogle Scholar
  12. 12.
    Kress W, Bilz H, Guntherodt G, and Jayaraman A, J Phys (Paris), 39 (1981) C6.Google Scholar
  13. 13.
    Jha P K, and Sanyal S P, Physica B 216, (1995) 125.CrossRefGoogle Scholar
  14. 14.
    Jha P K, and Sanyal S P, Phys Rev 46 (1992) 3664.CrossRefGoogle Scholar
  15. 15.
    Jha P K, and Sanyal S P, Phy Rev B 52 (1995) 1589.CrossRefGoogle Scholar
  16. 16.
    Arya B S, Aynyas M. and Sanyal S P, J Nuc Mats 393 (2009) 381.CrossRefGoogle Scholar
  17. 17.
    Singh R K; Phys Rep 85 (1982) 259.CrossRefGoogle Scholar
  18. 18.
    Jha P K, and Sanyal S P; Ind J Pure App Phys 32 (1994) 824.Google Scholar
  19. 19.
    Dernier P D, Weber W, and Longinotti L D; Phys Rev B 14 (1976) 3635.Google Scholar
  20. 20.
    Ghatak A K, and Kothari L S; An Introduction to Lattice Dynamics, Addison Wesley, London (1972), pp 138.Google Scholar
  21. 21.
    Leger J M, Physica B 190 (1993) 84.CrossRefGoogle Scholar

Copyright information

© Indian Institute of Metals 2014

Authors and Affiliations

  • B. S. Arya
    • 1
  • Mahendra Aynyas
    • 2
  • Archana Singh
    • 3
  • Sankar P. Sanyal
    • 3
  1. 1.Department of PhysicsGovt. Narmada P. G. CollegeHoshangabadIndia
  2. 2.Department of PhysicsC. S. A. Govt. P. G. CollegeSehoreIndia
  3. 3.Department of PhysicsBarkatullah UniversityBhopalIndia

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