Vibrational modes in LiBC: Theory and experiment

Document Type

Conference Proceeding

Publication Date

4-1-2003

Abstract

The search for other superconductors in the MgB2 class currently is focussed on Li1-xBC, 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 and 620 cm-1. © 2002 Elsevier Science B.V. All rights reserved.

Identifier

0037400204 (Scopus)

Publication Title

Physica B Condensed Matter

External Full Text Location

https://doi.org/10.1016/S0921-4526(02)01796-9

ISSN

09214526

First Page

1

Last Page

5

Issue

1-2

Volume

328

Grant

DMR-0114818

Fund Ref

Deutscher Akademischer Austauschdienst France

This document is currently not available here.

Share

COinS