5 papers · 1 filter
Raman Scattering Investigation of Electron Phonon Coupling in Carbon substituted MgB2
T. Sakuntala, A. Bharathi, S. K. Deb +3
Room temperature Raman scattering measurements have been carried out on well characterized samples of MgB2-xCx. The Raman line corresponding to the E2g phonon mode shows progressiv…
Raman Studies in MgB2-xCx
T. Sakuntala, S. K. Deb, A. Bharathi +3
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 nar…
Tuning of the superconducting and ferromagnetic transitions by Cu doping for Ru in GdSr2RuCu2O8
J. Janaki, T. Geetha Kumary, R. Nagarajan +5
In order to explore the possibility of tuning superconducting and ferromagnetic transitions by Cu doping (for Ru) in GdSr2RuCu2O8, we have carried out synthesis and characterizatio…
Study of Normal and Superconducting States of MgCNi_3 upon Fe and Co Substitution and External Pressure
T. Geetha Kumary, J. Janaki, Awadhesh Mani +5
Results of our study on the superconducting and normal state properties of the recently discovered superconductor MgCNi_3, the effect of Fe and Co substitution at the Ni site and t…
Infrared absorption in superconducting MgB2
C. S. Sundar, A. Bharathi, M. Premila +6
Infrared absorption measurements in the range of 125 to 700 cm^(-1) have been carried out as a function of temperature upto 5 K in MgB2. The absorption spectrum is characterised by…