Anisotropic thermoelectric properties of MnS γ film prepared on R-sapphire

Komei Takeda, Yuta Kikuchi, Kei Hayashi, Yuzuru Miyazaki, Tsuyoshi Kajitani

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We attempted to obtain an epitaxial MnSiγ (γ ∼ 1:7) film on R-sapphire, i.e., Sapphire(11̄02), substrate by pulsed laser deposition. We prepared MnSi γ films by changing the substrate temperature gradient. It was found that the MnSiγ film, whose temperature gradient in a substrate is parallel to Sapphire[112̄0], could be grown epitaxially on the substrate. The epitaxial relationship was MnSiγ(1000)[0010] || Sapphire(11̄02)[112̄0]. The thermoelectric properties of the epitaxial MnSi γ film were different in the a- and c-axes, reflecting the anisotropic MnSi γ crystal structure. The anisotropic thermoelectric properties are discussed in terms of the electronic structure.

Original languageEnglish
Article number055501
JournalApplied Physics Express
Volume5
Issue number5
DOIs
Publication statusPublished - 2012 May 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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