Lattice Dynamical Calculations for Li_{1+x}Ti_{2-x}O_4 (x=0.33) and Li_{1-y}Mg_{y}Ti_2O_4 (y=0.1, 0.3)

• Authors: A. Kushwaha
• Languages of publication: EN

Abstracts

EN

Zone-centre Raman and infrared phonon frequencies for the spinel phases of oxides Li_{1+x}Ti_{2-x}O_4 (x=0.33) and Li_{1-y}Mg_{y}Ti_2O_4 (y=0.1, 0.3) of space group Fd3m have been calculated using a proposed short-range force constant model. In this model, the lattice potential energy is expanded using Taylor's expansion in the harmonic approximation. The calculated zone-centre phonon frequencies are in good agreement with the available experimental and previously calculated results.

Keywords

EN

63.20.-e

Discipline

• 63.20.-e: Phonons in crystal lattices(for phonons in superconductors, see 74.25.Kc; see also 43.35.Gk Phonons in crystal lattice, quantum acoustics—in Acoustics Appendix)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 4
• Pages: 695-697

Dates

published

2013-10

received

2012-10-10

(unknown)

2013-04-24

Contributors

author

A. Kushwaha

• Department of Physics, K.N. Govt. P.G. College, Gyanpur, Bhadohi-221304, India

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Identifiers

DOI

10.12693/APhysPolA.124.695