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

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.
Authors:
 [1] ;  [2]
  1. Sant Baba Bhag Singh Institute of Engineering and Technology, Padhiana, Jalandhar (Punjab) (India)
  2. Department of Physics, Sant Longowal Institute of Engineering and Technology Longowal, Sangrur (Punjab) – 148106 (India)
Publication Date:
OSTI Identifier:
22488827
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINATES; COMPUTERIZED SIMULATION; CRYSTAL LATTICES; CUBIC LATTICES; DIAGRAMS; DISPERSIONS; LANTHANUM COMPOUNDS; PHONONS; VIBRATIONAL STATES; ZONES