@article{oai:muroran-it.repo.nii.ac.jp:00010354, author = {MONA, Yuttana and HAYASHI, Jun-ichi and 川村, 幸裕 and KAWAMURA, Yukihiro and 木方, 邦宏 and KIHOU, Kunihiro and NISHIATE, Hirotaka and LEE, Chul Ho and 李, 哲虎 and 関根, ちひろ and SEKINE, Chihiro}, issue = {12}, journal = {JAPANESE JOURNAL OF APPLIED PHYSICS}, month = {}, note = {application/pdf, We report the thermoelectric properties of the partially Ce or Nd filled skutterudite compounds CexCo4Sb12 and NdxCo4Sb12 prepared under high pressures and temperatures. The samples were characterized by X-ray diffraction. The actual filling ratio x of Ce or Nd was estimated by scanning electron microscopy (SEM) with energy-dispersive X-ray spectrometry (EDX). SEM-EDX results indicate that the maximum x values of Ce and Nd can be increased to 0.37 and 0.33, respectively. These values have been considered the highest for any CexCo4Sb12 and NdxCo4Sb12 reported thus far. The electrical resistivity, thermal conductivity, and Seebeck coefficient measurements of the compounds were performed from 5 to 760 K. Furthermore, the Hall coefficient and specific heat of the compounds were also measured below 300 K. The Seebeck and Hall coefficients of both Ce- and Nd-filled samples exhibited the n-type conductor behavior. The maximum dimensionless figure-of-merit (ZT) values of CexCo4Sb12 and NdxCo4Sb12 were determined to be 0.26 and 0.48 at 700K, respectively. (C) 2018 The Japan Society of Applied Physics}, title = {Thermoelectric properties of partially filled skutterudites RxCo4Sb12 (R = Ce and Nd) synthesized under high pressures}, volume = {57}, year = {2018}, yomi = {カワムラ, ユキヒロ and キホウ, クニヒロ and セキネ, チヒロ} }