[13a-2T-1~12] 9.4 Thermoelectric conversion

[13a-2T-7] Thermoelectric properties of higher manganese silicide partially substituting small amount of Ta for Mn

〇Akio Yamamoto¹, Naoya Hiroishi², Tsunehiro Takeuchi^1,3 (1.Toyota technological Institute Univ., 2.Nagoya Univ.(NSSMC), 3.PRESTO)

Keywords:Thermoelectrics,Electronic structure,Band calculation

The lattice thermal conductivity in in higher manganese silicide(HMS) was reduced by substituting ubiqutously heavier element Ta for Mn without badly affecting electron transport properties. So, the ZT of Ta doped HMS is larger than that of heavy element free HMS.