Hall effect of spin-chirality origin in a triangular-lattice helimagnet Fe 1.3Sb

Y. Shiomi, M. Mochizuki, Y. Kaneko, Y. Tokura

研究成果: Article査読

29 被引用数 (Scopus)

抄録

We report on a topological Hall effect possibly induced by scalar spin chirality in a quasi-two-dimensional helimagnet Fe 1+δSb. In the low-temperature region where the spins on interstitial-Fe (concentration δ∼0.3) intervening the 120°spin-ordered triangular planes tend to freeze, a nontrivial component of Hall resistivity with opposite sign of the conventional anomalous Hall term is observed under magnetic field applied perpendicular to the triangular-lattice plane. The observed unconventional Hall effect is ascribed to the scalar spin chirality arising from the heptamer spin clusters around the interstitial-Fe sites, which can be induced by the spin modulation by the Dzyaloshinsky-Moriya interaction.

本文言語English
論文番号056601
ジャーナルPhysical Review Letters
108
5
DOI
出版ステータスPublished - 2012 1 30
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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