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

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number134406
JournalPhysical Review B
Volume103
Issue number13
DOIs
Publication statusPublished - 2021 Apr 5

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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