Good Thermoelectric Performance in Strongly Correlated System SnCCo3 with Antiperovskite Structure

• DOI: 10.1021/ic500026t
• Publication Date: 2014-03-25T16:33:03Z
• Authors: Shuai Lin; Peng Tong; Bosen Wang; Jianchao Lin; Yanan Huang; Yuping Sun
• Keywords: Antiperovskite

We report the magnetic, electrical, and thermoelectric properties of SnCCo3, where good performance [figure merit ZT ∼ 0.035(2), 258 K] strong electron correlation (Kadowaki-Woods ratio RKW 4a0) are observed. The ACCo3 (A = Al, Ga, Ge) SnCM3 (M Mn, Fe) were also investigated for comparison. As a result, value SnCCo3 is largest among all those samples, which mainly attributed to large Seebeck coefficient caused by low carrier density. Moreover, can be effectively enhanced proper chemical doping in SnCCo3.