Dependence of anomalous Nernst effect on crystal orientation in highly ordered γ′-Fe4N films with anti-perovskite structure

Shinji Isogami, Koki Takanashi, Masaki Mizuguchi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The anomalous Nernst effect (ANE) in highly ordered Fe4N films was examined in the measurement configuration with an in-plane temperature gradient (∇Tx). The anomalous Nernst coefficient (Qs) in the case of ∇Tx || Fe4N[110] was clearly larger than that in the case of ∇Tx || Fe4N[100]. Note here that no reports on the Qs in Fe4N films have been presented. This anisotropic Qs (Qani) was also observed in a different configuration with an out-of-plane temperature gradient. Unlike Fe4N, pure Fe and A2-FeAl systems showed a negligible Qani. This Qani might be attributed to the specific hybridization effects between the 3d orbitals of Fe and the 2p orbitals of N.

Original languageEnglish
Article number073005
JournalApplied Physics Express
Volume10
Issue number7
DOIs
Publication statusPublished - 2017 Jul

ASJC Scopus subject areas

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

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