Vibrational Modes in LiBC: Theory Compared with Experiment

Details Vibrational Modes in LiBC: Theory Compared with Experiment Vibrational Modes in LiBC: Theory Compared with Experiment

2002-09-11

arxiv.org/abs/cond-mat/0209256v1

Physics

Condensed Matter

Superconductivity

4 pages, two embedded figures. Physica B (in press)

Scientific paper

10.1016/S0921-4526(02)01796-9

The search for other superconductors in the MgB2 class currently is focussed on Li{1-x}BC, which when hole-doped (concentration x) should be a metal with the potential to be a better superconductor than MgB2. Here we present the calculated phonon spectrum of the parent semiconductor LiBC. The calculated Raman-active modes are in excellent agreement with a recent observation, and comparison of calculated IR-active modes with a recent report provides a prediction of the LO--TO splitting for these four modes, which is small for the B-C bond stretching mode at ~1200 cm^{-1}, but large for clearly resolved modes at 540 cm^{-1} and 620 cm^{-1}.

Affiliated with

Also associated with

No associations

Rating

Vibrational Modes in LiBC: Theory Compared with Experiment 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 Vibrational Modes in LiBC: Theory Compared with Experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibrational Modes in LiBC: Theory Compared with Experiment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-159987