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Title: Zone center phonons of orthorhombic perovskite YAlO[sub 3]

Abstract

A short range force constant model has been applied to investigate the phonons in YAlO[sub 3] perovskite in the orthorhombic phase. The calculations with six stretching and one bending force constants provide a satisfactory agreement for the available Raman frequencies. Based on the present calculations, the infrared frequencies have been assigned for the first time.

Authors:
;  [1]
  1. (Indian Inst. of Tech., New Delhi (India). Physics Dept.)
Publication Date:
OSTI Identifier:
6108839
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 146:2; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; CRYSTAL MODELS; CRYSTAL STRUCTURE; PHONONS; RAMAN SPECTRA; STRUCTURE FACTORS; THEORETICAL DATA; YTTRIUM OXIDES; ALUMINIUM COMPOUNDS; CHALCOGENIDES; DATA; INFORMATION; MATHEMATICAL MODELS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; QUASI PARTICLES; SPECTRA; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Gupta, H.C., and Ashdhir, P. Zone center phonons of orthorhombic perovskite YAlO[sub 3]. United States: N. p., 1999. Web. doi:10.1006/jssc.1999.8323.
Gupta, H.C., & Ashdhir, P. Zone center phonons of orthorhombic perovskite YAlO[sub 3]. United States. doi:10.1006/jssc.1999.8323.
Gupta, H.C., and Ashdhir, P. Wed . "Zone center phonons of orthorhombic perovskite YAlO[sub 3]". United States. doi:10.1006/jssc.1999.8323.
@article{osti_6108839,
title = {Zone center phonons of orthorhombic perovskite YAlO[sub 3]},
author = {Gupta, H.C. and Ashdhir, P.},
abstractNote = {A short range force constant model has been applied to investigate the phonons in YAlO[sub 3] perovskite in the orthorhombic phase. The calculations with six stretching and one bending force constants provide a satisfactory agreement for the available Raman frequencies. Based on the present calculations, the infrared frequencies have been assigned for the first time.},
doi = {10.1006/jssc.1999.8323},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 146:2,
place = {United States},
year = {1999},
month = {9}
}