Design and fabrication of full-Heusler compound with positive Seebeck coefficient as a potential thermoelectric material

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2 Citations (Scopus)

Abstract

To explore full-Heusler compounds with positive Seebeck coefficient, we calculated thermoelectric (TE) properties of several Co- and Mn-based full-Heusler compounds. Relatively high Seebeck coefficients were obtained in the calculation, indicating a potential of full-Heusler compounds as TE materials. As a candidate, we prepared a Mn2VAl sample and measured its TE properties. As predicted in the calculation, the Mn2VAl sample exhibited a positive Seebeck coefficient from 315 K to 1020 K. The maximum power factor was 2.7 × 10−4 Wm−1 K−2 at 717 K. This study embodies great significance for future study on design and fabrication of full-Heusler compounds with high TE properties.

Original languageEnglish
Pages (from-to)130-133
Number of pages4
JournalScripta Materialia
Volume150
DOIs
Publication statusPublished - 2018 Jun

Keywords

  • Co-based full-Heusler compounds
  • First-principles density functional theory
  • Mn-based full-Heusler compounds
  • MnVAl
  • Thermoelectric properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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