Magnetic order of Dy${}^{3+}$ and Fe${}^{3+}$ moments in antiferromagnetic DyFeO${}_3$ probed by spin Hall magnetoresistance and spin Seebeck effect

Abstract

We report on spin Hall magnetoresistance (SMR) and spin Seebeck effect (SSE) in single crystal of the rare-earth antiferromagnet DyFeO${}_3$ with a thin Pt film contact. The angular shape and symmetry of the SMR at elevated temperatures reflect the antiferromagnetic order of the Fe${}^{3+}$ 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 Dy${}^{3+}$ moments up to room temperature. At and below the Morin temperature of 50K, the SMR monitors the spin-reorientation phase transition of Fe${}^{3+}$ spins. Below 23K, additional features emerge that persist below 4K, the ordering temperature of the Dy${}^{3+}$ 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.

References in corpus (8)

• Theory of spin Hall magnetoresistance
• Spin pumping and spin-transfer torques in antiferromagnets
• Negative spin Hall magnetoresistance of Pt on the bulk easy-plane antiferromagnet NiO
• Simultaneous detection of the spin-Hall magnetoresistance and the spin-Seebeck effect in Platinum and Tantalum on Yttrium Iron Garnet
• Ground state and magnetic phase transitions of orthoferrite DyFeO_3
• Electrical detection of spiral spin structures in Pt|Cu_2OSeO_3 heterostructures
• Anomalous Hall effect in non-collinear antiferromagnetic antiperovskite Mn${}_3$Ni${}_{1-x}$Cu${}_x$N
• Non-local spin Seebeck effect in the bulk easy-plane antiferromagnet NiO

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• Simple Realistic Model of Spin Reorientation in 4f-3d Compounds
• Probing magnetic anisotropy and spin-reorientation transition in 3D antiferromagnet, Ho${}_{0.5}$Dy${}_{0.5}$FeO${}_3|$Pt using spin Hall magnetoresistance