Double-Doping Approach to Enhancing the Thermoelectric Figure-of-Merit of n-Type MgSi Synthesized by Use of Spark Plasma Sintering. - Muthiah, Saravanan; Sivaiah, B.; Gahtori, B.; Tyagi, K.; Srivastava, A.; Pathak, B.; Dhar, Ajay; Budhani, R. (Journal of Electronic Materials, 2014)