Enhancement of Seebeck coefficient for SrO„SrTiO3...2 by Sm substitution: Crystal symmetry restoration of distorted TiO6 octahedra

نویسندگان

  • Yifeng Wang
  • Kyu Hyoung Lee
  • Hideki Kita
  • Katsuhiko Inaba
  • Hiromichi Ohta
  • Kunihito Koumoto
چکیده

We found that Sm3+ substitution in SrO SrTiO3 2 is effective in improving the Seebeck coefficient S . The S value increases notably with temperature, benefiting from an enhancement of the density of states DOS effective mass md * from 3m0 300 K to 7.5m

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تاریخ انتشار 2007