Antiferromagnetic anisotropy determination by spin Hall magnetoresistance

Abstract

An electric method for measuring magnetic anisotropy in antiferromagnetic insulators (AFIs) is proposed. When a metallic film with strong spin-orbit interactions, e.g., platinum (Pt), is deposited on an AFI, its resistance should be affected by the direction of the AFI N eel vector due to the spin Hall magnetoresistance (SMR). Accordingly, the direction of the AFI N eel vector, which is affected by both the external magnetic field and the magnetic anisotropy, is reflected in resistance of Pt. The magnetic field angle dependence of the resistance of Pt on AFI is calculated by consider- ing the SMR, which indicates that the antiferromagnetic anisotropy can be obtained experimentally by monitoring the Pt resistance in strong magnetic fields. Calculations are performed for realistic systems such as Pt/Cr2O3, Pt/NiO, and Pt/CoO.

References in corpus (20)

• Spin Hall effect
• Antiferromagnetic spintronics
• Electrical switching of an antiferromagnet
• Direct electronic measurement of the spin Hall effect
• Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
• Theory of spin Hall magnetoresistance
• Room-temperature antiferromagnetic memory resistor
• Non-collinear Magnetoelectronics
• Antiferromagnetic spin Seebeck Effect
• Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator
• Thermal generation of spin current in an antiferromagnet
• Multiple-stable anisotropic magnetoresistance memory in antiferromagnetic MnTe
• Spin-current probe for phase transition in an insulator
• Anisotropic magnetoresistance in antiferromagnetic semiconductor Sr2IrO4 epitaxial heterostructure
• Conduction of spin currents through insulating oxides
• Tunable sign change of spin Hall magnetoresistance in Pt/NiO/YIG structures
• Spin-flop transition in uniaxial antiferromagnets: magnetic phases, reorientation effects, multidomain states
• The effect of inserted NiO layer on spin-Hall magnetoresistance in Pt/NiO/YIG heterostructures
• Spin Hall magnetoresistance in antiferromagnet/normal metal bilayers
• First principles investigation of exchange interactions in quasi-one-dimensional antiferromagnet CaV2O4

Cited by in corpus (15)

• Spin Hall magnetoresistance in antiferromagnet/heavy-metal heterostructures
• Full angular dependence of the spin Hall and ordinary magnetoresistance in epitaxial antiferromagnetic NiO(001)/Pt thin films
• Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3
• Evolution of the Spin Hall Magnetoresistance in Cr${}_2$O${}_3$/Pt bilayers close to the Néel temperature
• Strong interfacial exchange field in a heavy metal/ferromagnetic insulator system determined by spin Hall magnetoresistance
• Effects of magnetic anisotropy on spin and thermal transports in classical antiferromagnets on the square lattice
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Spin current as a probe of the ${\mathbb{Z}}_2$-vortex topological transition in the classical Heisenberg antiferromagnet on the triangular lattice
• Disclosing antiferromagnetism in tetragonal Cr2O3 by electrical measurements
• All-electrical detection of skyrmion lattice state and chiral surface twists
• Domain periodicity in an easy-plane antiferromagnet with Dzyaloshinskii-Moriya interaction
• Spin Hall magnetoresistance effect from a disordered interface
• Insight into the structural and magnetotransport properties of epitaxial heterostructures $\alpha$-Fe${}_2$O${}_3$-Pt(111): Role of the reversed layer sequence
• Probing magnetic anisotropy and spin-reorientation transition in 3D antiferromagnet, Ho${}_{0.5}$Dy${}_{0.5}$FeO${}_3|$Pt using spin Hall magnetoresistance
• Spin transfer torques and spin-dependent transport in a metallic F/AF/N tunneling junction