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Hari, NS and Kutty, TRN (1998) Effect of secondary-phase segregation on the positive temperature coefficient in resistance characteristics of $n-BaTio_3$ ceramics. In: Journal of Materials Science, 33 (13). 3275 -3284.
Kutty, TRN and Hari, NS (1998) Effect of charge redistribution through secondary phase formation on PTCR characteristics of $n-BaTiO_3$ ceramics. In: Materials Letters, 34 (1-2). pp. 43-49.
Kutty, TRN and Hari, NS (1997) The two-step positive temperature coefficient in resistance characteristics of n-(Ba,Pb)TiO3 ceramics created through inclusion of grain boundary modifier additives. In: Journal of Physics D: Applied Physics, 30 (24). pp. 3360-3365.
Hari, NS and Padmini, P and Kutty, TRN (1997) Complex impedance analyses of n-BaTiO3 ceramics showing positive temperature coefficient of resistance. In: Journal of Materials Science: Materials in Electronics, 8 (1). pp. 15-22.
Padmini, P and Hari, NS and Kutty, TRN (1995) Cryogenic sensors from semiconducting barium titanate ceramics with strong negative temperature coefficient of resistance. In: Sensors and Actuators A, 50 (1-2). pp. 39-44.
Kutty, TRN and Hari, NS (1995) Multifunctional cryogenic sensors from n-BaTiO3 ceramics having strong negative temperature coefficient of resistance. In: Journal of Physics D: Applied Physics, 28 (2). pp. 371-374.
