Magnetic order of Dy3+ and Fe3+ moments in antiferromagnetic DyFe O3 probed by spin Hall magnetoresistance and spin Seebeck effect

G. R. Hoogeboom, T. Kuschel, G. E.W. Bauer, M. V. Mostovoy, A. V. Kimel, B. J. Van Wees

研究成果: Article査読

抄録

We report on spin Hall magnetoresistance (SMR) and spin Seebeck effect (SSE) in a single crystal of the rare-earth antiferromagnet DyFeO3 with a thin Pt film contact. The angular shape and symmetry of the SMR at elevated temperatures reflect the antiferromagnetic order of the Fe3+ moments as governed by the Zeeman energy, the magnetocrystalline anisotropy, and the Dzyaloshinskii-Moriya interaction. We interpret the observed linear dependence of the signal on the magnetic field strength as evidence for field-induced order of the Dy3+ moments up to room temperature. At and below the Morin temperature of 50K, the SMR monitors the spin-reorientation phase transition of Fe3+ spins. Below 23K, additional features emerge that persist below 4K, the ordering temperature of the Dy3+ magnetic sublattice. We conclude that the combination of SMR and SSE is a simple and efficient tool to study spin reorientation phase transitions and sublattice magnetizations.

本文言語English
論文番号134406
ジャーナルPhysical Review B
103
13
DOI
出版ステータスPublished - 2021 4 5

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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