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…