Weber, Mads C., Kreisel, J., Thomas, Pam A., Newton, Mark E., Sardar, Kripasindhu and Walton, Richard I. (2012) Phonon Raman scattering of RCrO_{3} perovskites (R=Y, La, Pr, Sm, Gd, Dy, Ho, Yb, Lu). Physical Review B (Condensed Matter and Materials Physics), Vol.85 (No.5). 054303. doi:10.1103/PhysRevB.85.054303

Research output not available from this repository, contact author.

Request Changes to record.

Abstract

We report a systematic investigation of orthorhombic perovskite-type RCrO3 powder samples by Raman scattering for nine different rare earth R3+ cations (R = Y, La, Pr, Sm, Gd, Dy, Ho, Yb, and Lu). The room-temperature Raman spectra and the associated phonon mode assignment provide reference data for structural investigation of the whole series of RCrO3 orthochromites and phonon ab-initio calculations. The assignment of the chromite spectra and comparison with Raman data on other orthorhombic perovskites allows correlating the phonon modes with the structural distortions in the RCrO3 series. In particular, two Ag modes are identified as octahedra rotation soft modes, as their positions scale linearly with the octahedra tilt angle of the CrO6 octahedra.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review B (Condensed Matter and Materials Physics)
Publisher:	American Physical Society
ISSN:	1098-0121
Official Date:	9 February 2012
Dates:	Date Event 9 February 2012 Published
Volume:	Vol.85
Number:	No.5
Page Range:	054303
DOI:	10.1103/PhysRevB.85.054303
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item