IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ}

Details IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ} IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ}

2007-04-11

arxiv.org/abs/0704.1402v2

Physics

Condensed Matter

Strongly Correlated Electrons

21 pages, 8 figures, submitted to Physica B; the replacement corrects a few minor misprints, and changes the colours of Fig. 1

Scientific paper

10.1016/j.physb.2008.07.008

Infrared-active phonons in LaMnO_{3+\delta} were studied by means of the reflection and transmission spectroscopy from 50 to 800 cm^{-1} at room temperature. Powder and ceramic samples of the phases of Pnma-2 (\delta=0.02), Pnma-1 (\delta=0.08), and R3c (\delta=0.15) were investigated. Besides, energies of the dipole-active phonons in Pnma-2, Pnma-1 phases were obtained by lattice-dynamics calculations. The transformations of IR-active phonons with the increase of \delta in the sequence of Pnma-2, Pnma-1, R3c are discussed.

Affiliated with

Also associated with

No associations

Rating

IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ} does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ}, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IR-active optical phonons in Pnma-1, Pnma-2 and R3c phases of LaMnO_{3+δ} will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-673219