See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/243307880 A lattice dynamical investigation of Raman and infrared wavenumbers at the zone center of the orthorhombic NdNiO 3... Article in Journal of Physics and Chemistry of Solids · March 2003 DOI: 10.1016/S0022-3697(02)00336-0 CITATIONS 7 READS 43 3 authors: Hem Gupta Indian Institute of Technology Delhi 188 PUBLICATIONS 1,120 CITATIONS SEE PROFILE Manoj K. Singh University of Allahabad 41 PUBLICATIONS 869 CITATIONS SEE PROFILE Lokmani Tiwari doon Institute of engineering and technology R… 13 PUBLICATIONS 41 CITATIONS SEE PROFILE All content following this page was uploaded by Hem Gupta on 03 July 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.