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Atomic and electronic structure of Ti substitution in Ca3Co4O9

Hu, Xuan; Phillips, Patrick J; Mazumdar, Dipanjan; Idrobo, Juan Carlos; Kolesnik, Stanislaw; Gupta, Arunava (American Institute of Physics, 2016-11)

We examine the role of Ti doping in the incommensurately layered thermoelectric oxide material Ca3Co4O9 (CCO). The measured Seebeck coefficient of S = 135 µV /K in Ti-doped CCO thin films of composition Ca3Co3.8Ti0.2O9 ...