TY - JOUR
T1 - Thermoelectric properties of semi-metallic Ru2Sn3-δ with low thermal conductivity
AU - Kawasoko, Hideyuki
AU - Takayama, Tomohiro
AU - Takagi, Hidenori
N1 - Publisher Copyright:
© 2014 The Japan Society of Applied Physics
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Intermetallic Ru2Sn3-δ was found to show high thermoelectric performance of ZT ∼ 0.3 at temperatures around 660 K. The transport properties, combined with the electronic structure calculation, indicate that Ru2Sn3 is a semi-metal with contrasting dispersions between the hole and electron bands, which generate a large thermoelectric power of S ∼ 100 μuV/K. A low thermal conductivity κ of around 1Wm-1 K-1 was observed above room temperature, which is likely due to the strong lattice anharmonicity associated with the martensitic transformation.
AB - Intermetallic Ru2Sn3-δ was found to show high thermoelectric performance of ZT ∼ 0.3 at temperatures around 660 K. The transport properties, combined with the electronic structure calculation, indicate that Ru2Sn3 is a semi-metal with contrasting dispersions between the hole and electron bands, which generate a large thermoelectric power of S ∼ 100 μuV/K. A low thermal conductivity κ of around 1Wm-1 K-1 was observed above room temperature, which is likely due to the strong lattice anharmonicity associated with the martensitic transformation.
UR - http://www.scopus.com/inward/record.url?scp=84909993413&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84909993413&partnerID=8YFLogxK
U2 - 10.7567/APEX.7.115801
DO - 10.7567/APEX.7.115801
M3 - Article
AN - SCOPUS:84909993413
SN - 1882-0778
VL - 7
SP - 115801
JO - Applied Physics Express
JF - Applied Physics Express
IS - 11
ER -