Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-10-08
Phys. Rev. B 80, 180502(R) (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 3 figures and one table (minor revisions)
Scientific paper
10.1103/PhysRevB.80.180502
The detailed optical properties of BaFe2As2 have been determined over a wide frequency range above and below the structural and magnetic transition at T_N = 138 K. A prominent in-plane infrared-active mode is observed at 253 cm^{-1} (31.4 meV) at 295 K. The frequency of this vibration shifts discontinuously at T_N; for T < T_N the frequency of this mode displays almost no temperature dependence, yet it nearly doubles in intensity. This anomalous behavior appears to be a consequence of orbital ordering in the Fe-As layers.
Akrap Ana
Cao G.-H.
Homes Christopher C.
Li Lain-Jong
Tu Jiachin
No associations
LandOfFree
Phonon anomaly in BaFe2As2 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 Phonon anomaly in BaFe2As2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phonon anomaly in BaFe2As2 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-353202