Citation: Kanno, Tsutomu; Tamaki, Hiromasa; Sato, Hiroki K.; Kang, Stephen Dongmin; Ohno, Saneyuki; Imasato, Kazuki; Kuo, Jimmy Jiahong; Snyder, G. Jeffrey; Miyazaki, Yuzuru (2018). Enhancement of average thermoelectric figure of merit by increasing the grain-size of Mg3.2Sb1.5Bi0.49Te0.01. Applied Physics Letters, 112, pp. 033903-.