Separation of inverse spin Hall effect and anomalous Nernst effect in ferromagnetic metals
arXiv:1701.05320 · doi:10.1016/j.jmmm.2017.05.031
Abstract
Inverse spin Hall effect (ISHE) in ferromagnetic metals (FM) can also be used to detect the spin current generated by longitudinal spin Seebeck effect in a ferromagnetic insulator YIG. However, anomalous Nernst effect(ANE) in FM itself always mixes in the thermal voltage. In this work, the exchange bias structure (NiFe/IrMn)is employed to separate these two effects. The exchange bias structure provides a shift field to NiFe, which can separate the magnetization of NiFe from that of YIG in M-H loops. As a result, the ISHE related to magnetization of YIG and the ANE related to the magnetization of NiFe can be separated as well. By comparison with Pt, a relative spin Hall angle of NiFe (0.87) is obtained, which results from the partially filled 3d orbits and the ferromagnetic order. This work puts forward a practical method to use the ISHE in ferromagnetic metals towards future spintronic applications.
arXiv comment4 pages, 5 figures
References in corpus (16)
- Anomalous Hall effect
- Spin Hall effect
- Spin Caloritronics
- Direct electronic measurement of the spin Hall effect
- Spin Seebeck insulator
- Room Temperature Reversible Spin Hall Effect
- Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
- Quantifying spin Hall angles from spin pumping: Experiments and Theory
- Theory of magnon-driven spin Seebeck effect
- Scaling of spin Hall angle in 3d, 4d and 5d metals from Y3Fe5O12/metal spin pumping
- Indication of intrinsic spin Hall effect in 4d and 5d transition metals
- Antiferromagnetic spin Seebeck Effect
- Inverse Spin Hall Effect in NiFe / Normal Metal Bilayers
- Spin Seebeck effect through antiferromagnetic NiO
- Anomalous-Nernst and anisotropic magnetoresistive heating in a lateral spin valve
- Unambiguous separation of the inverse spin Hall and anomalous Nernst Effects within a ferromagnetic metal using the spin Seebeck effect
Cited by in corpus (7)
- Magnon Valve Effect Between Two Magnetic Insulators
- Intrinsic spin currents in ferromagnets
- Magnon Valves Based on YIG/NiO/YIG All-Insulating Magnon Junctions
- Origin of the Magnetic Spin Hall Effect: Spin Current Vorticity in the Fermi Sea
- Interfacial spin-orbit torques
- Anomalous Nernst effect on the nanometer scale: Exploring three-dimensional temperature gradients in magnetic tunnel junctions
- Exchange-driven spin Hall effect in anisotropic ferromagnets