51 citations · 66 across the 4 of their papers we have counts for
4 papers
Phonons as a Probe of the Low Temperature Metal Insulator Transition in Na.75Co.95Ni.05O2
M. Premila, A. Bharathi, P. Yasodha +2
Nickel substitution at the cobalt site in NaxCoO2 induces a Metal Insulator Transition (MIT) and the temperature at which this occurs (TMIT) increases with Ni content. Low temperat…
Drastic ground state changes induced by Ni substitution in NaxCoO2
N. Gayathri, M. Premila, A. Bharathi +3
We report on the effect of Ni substitution at the Co site on the physical properties of NaxCoO2 system by investigating the series NaxCo1-yNiyO2 (x=0.75, 0<y<0.15). An upturn in th…
Synthesis and search for superconductivity in LiBC
A. Bharathi, S. Jemima Balaselvi, M. Premila +4
Following the recent theoretical prediction of superconductivity in hole doped LiBC by Rosner et al [1], we have attempted to synthesise Li deficient LixBC (x = 1, 0.8, 0.6 and 0.4…
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…