Study of vibrational modes in protonic conductor LaAlO{sub 3}

Journal Article · Fri Aug 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4929232· OSTI ID:22488827

Sinha, M. M. ^[1]

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1. Department of Physics, Sant Longowal Institute of Engineering and Technology Longowal, Sangrur (Punjab) – 148106 (India)

In this work, we are presenting the results of our theoretical investigation on the vibrational properties of LaAlO{sub 3} in its cubic phase by using lattice dynamical simulation method based on de Launey angular force (DAF) constant model to understand the role of phonon in this system. The calculated zone centre frequencies agree well with available existing results. The phonon dispersion curves of LaAlO{sub 3} in cubic phase are also drawn.

• OSTI ID: 22488827
• Journal Information: AIP Conference Proceedings, Vol. 1675, Issue 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINATES
COMPUTERIZED SIMULATION
CRYSTAL LATTICES
CUBIC LATTICES
DIAGRAMS
DISPERSIONS
LANTHANUM COMPOUNDS
PHONONS
VIBRATIONAL STATES
ZONES