2024 Spin pumping effect

Spin pumping effect

Author: bqjp

August undefined, 2024

Webdue to spin pumping is inversely proportional to the thickness of the ferromagnet [25,26]. Since the direct injection of electrons from the insulator YIG into the Pt layer is not possible and spin pumping is an interface effect, an optimal interface quality is required in order to obtain a high spin- to charge-current conversion efﬁciency [27 ... Web(a) A schematic illustration of the Ni 81 Fe 19 /Pt film used in the present study. H is the external magnetic field. (b) A schematic illustration of the spin pumping and the inverse spin Hall effect in the Ni 81 Fe 19 /Pt film. M (t) is the magnetization in the Ni 81 Fe 19 layer. E ISHE ⁠, J s ⁠, and σ denote the electromotive force due to the inverse spin Hall effect, the …

Interface-driven spin pumping and inverse Rashba-Edelstein effect …

WebSpin-pumping [1] refers to a phenomenon where pure spin currents are injected from rotating magnets into the magnet's surroundings. Experimentally, the effect is usually achieved through placing the magnet … WebMar 11, 2016 · This is consistent with the behavior of spin pumping effect. After inserting the Cu layer, the damping α decreases nearly by half as compared with the one in Py/Tb … sketchup ikea furniture

Scaling behavior of the spin pumping effect in ferromagnet …

WebJan 8, 2016 · Spin pumping is a mechanism that generates spin currents from ferromagnetic resonance (FMR) over macroscopic interfacial areas, thereby enabling … WebApr 2, 2015 · The spin-mixing process generates the Sz = 0 triplet component from a spin-singlet source through spin-dependent phase shifts that the electrons experience when propagating through a... WebJun 15, 2024 · Alloying Pt and Cu improved the spin Hall efficiency of Pt 75 Cu 25 /Co/Ta by 29% to a value of 0.31 ± 0.03 at 407 K. However, the critical switching current density is dependent on the ratio... sketchup iges import

Proximity effect induced enhanced spin pumping in Py/Gd

WebJan 8, 2016 · This chapter is devoted to spin pumping. Spin pumping is the Onsager reciprocal of the spin transfer torque (STT) effect. Both STT and spin pumping are related to the transfer of spin... WebAug 19, 2015 · Spin pumping is the Onsager reciprocal of the spin transfer torque (STT) effect. Both STT and spin pumping are related to the transfer of spin angular momentum between a ferromagnet (F) and an appropriate reservoir. Two different experimental detection schemes for the spin‐pumping process in ferromagnet/normal metal (F/N) … swaddleme infant wrapWebThis chapter describes experiments on the generation and detection of spin currents using the spin pumping and inverse spin-Hall effect. The inverse spin-Hall effect, conversion of spin currents into an electric voltage through spin-orbit interaction, induced by the spin pumping was first discovered in a metallic film. sketchup imperial to metric

"WebMar 13, 2015 · We apply spin pumping and inverse spin Hall effect experiments, as a useful metrology, and study spin-orbit effects in a variety of metals and metal interfaces. We quantify the spin Hall effects in Ir and W using the conventional bilayer structures and discuss the self-induced voltage in a single layer of ferromagnetic permalloy. " - Spin pumping effect

Spin pumping effect

WebMar 1, 2024 · The so-called spin pumping effect will cause an additional non-local Gilbert-type damping, which can be used to assess the transmission and reflection of spin currents at the HM/FM interface in term of the spin mixing conductance G m i x ↑ ↓. WebThe spin pumping from an insulator enables nonlinear generation of spin currents: nonlinear spin pumping. The combination of the spin pumping and inverse spin-Hall effect provides …

Did you know?

WebSpin pumping is the Onsager reciprocal of the spin transfer torque (STT) effect. Both STT and spin pumping are related to the transfer of spin angular momentum between a …

WebThe spectral shape of the electromotive force is well reproduced using a simple Lorentz function, indicating that the electromotive force is due to the ISHE induced by the spin pumping; extrinsic magnetogalvanic effects are eliminated in this measurement. WebThe spin dynamic process of the IrMn/CoFe system has been investigated by the time-resolved magneto-optical Kerr effect. It is found that both spin pumping and the interfacial exchange spring effect between IrMn and CoFe layers contribute to the total effective Gilbert damping. With the increase in IrMn layer thickness (tIrMn), the saturated damping factor …

WebMay 23, 2011 · Spin pumping has been previously detected indirectly by increased damping due to the leakage of energy and angular momentum out of the ferromagnet into the conductor [9], spin back-flow induced voltages [10], and the inverse spin Hall effect (ISHE) [11], in which a spin current induces a transverse electromotive force in a normal metal … WebApr 11, 2024 · The orbital pumping is the orbital counterpart of the spin pumping, which is one of the most versatile and powerful mechanisms for spin-current generation. We show that the orbital pumping in Ni/Ti bilayers injects an orbital current into the Ti layer, which is detected through the inverse orbital Hall effect.

WebApr 7, 2015 · The dependence of the spin-pumping effect on the yttrium iron garnet (Y 3 Fe 5 O 12, YIG) thickness detected by the inverse spin Hall effect (ISHE) has been investigated quantitatively.Due to the spin-pumping effect driven by the magnetization precession in the ferrimagnetic insulator Y 3 Fe 5 O 12 film a spin-polarized electron current is injected into …

WebJan 7, 2024 · Spin pumping (SP) is a well-established method to generate pure spin currents i.e., a pure spin current is emitted at the interface between a ferromagnet (FM) with a … sketchup images freeWebAug 1, 2011 · Spin pumping is the emission of a spin current by a magnetization dynamics while spin transfer stands for the excitation of magnetization by spin currents. Using Onsager's reciprocity relations we … swaddleme original swaddle wrap newbornWebJan 14, 2024 · AFM metals with large spin–orbit coupling (SOC) can act as spin current detectors via the inverse spin Hall effect (ISHE), where a detectable transverse charge current is converted from a... sketchup image on surface disapearsWebMay 5, 2005 · dependence of the spin-pumping effect with the atomic num-ber of the spacer-layer material was also predicted in Refs. 4. and 5, via the spin-ﬂip probability, which rapidly increases. swaddleme microfleece largeWebAug 3, 2024 · We present a spin pumping and inverse spin Hall effect study in a series of CoFeB/IrMn heterostructures. The IrMn has been grown in AFM phase. Angle dependent … sketchup import 2016 downloadWebMay 14, 2012 · The dependence of the effect on the duty cycle, pulse duration and electron spin relaxation times has been studied in detail. Once the lines in the EPR spectrum are inhomogeneously broadened, higher DNP effects are expected in the pulsed pumping mode than in the cw-mode for the same total power of microwave irradiation. The theoretical … sketchup images downloadWebAug 3, 2024 · Spin pumping studies are carried out for Co 40 Fe 40 B 20 (12 nm)/Cu (3 nm)/Ir 50 Mn 50 ( t nm)/AlO x (3 nm) samples where t value varies from 0 to 10 nm. Damping in all the samples is higher than in the single layer CoFeB which indicates that spin pumping due to IrMn is the underneath mechanism. sketchup illustrations