2003/09/17 by T. Sakuntala, S. K. Deb, Sakuntala, T. +9
Physics and Astronomy · #FOS: Physical sciences #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0309400
Submitted to DAE Solid State Physics Symposium December 2003
arxiv created 2003/09/17 · arxiv updated 2009/12/01
Raman scattering measurements have been carried out in MgB2-xCx for x=0.0 -0.30. The broad Raman band around 600cm-1 range, which corresponds to the E2g mode in MgB2 is seen to narrow and reduce in intensity with increasing carbon content. For x>0.15, new set of bands appear at 1200 cm-1 possibly arising from the B-C, E2g modes. The decrease in Tc with carbon substitution seems to correlate with this change over.