Anomalous and planar Righi-Leduc effects in 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ni</mml:mi><mml:mn>80</mml:mn></mml:msub><mml:mspace width="0.16em" /><mml:msub><mml:mi>Fe</mml:mi><mml:mn>20</mml:mn></mml:msub></mml:mrow></mml:math>
 ferromagnets

Madon, Benjamin; Chung, Pham Do; Wegrowe, Jean-Eric; Lacour, Daniel; Hehn, Michel; Polewczyk, Vincent; Anane, A.; Cros, Vincent

doi:10.1103/physrevb.94.144423

Cited by 15 publications

(25 citation statements)

References 32 publications

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“…A voltage drop will be developed at the ends of the electrode (C and D point) due to the spin current injection into the electrode and the corresponding ISHE in it with large spin orbit coupling (such as Pt, Bi). However, it seems that no signal of the 2π periodicity of ISHE was observed in the experiment 23 . Therefore, we directly use Eq.…”

Section: Fitting and Analysismentioning

confidence: 74%

“…Then, in order to fit the experimental data in Ref. 23 , we used thermocouple effect to transform the temperature gradient at both ends of the electrode into the electric potential. Finally, we use the formula of total voltage to fit with the experimental data and found that it fits well.…”

Section: Identification Of Spin Effects In the Anomalous Righi-leduc mentioning

confidence: 99%

“…Scientific RepoRtS | (2020) 10:11732 | https://doi.org/10.1038/s41598-020-68669-w www.nature.com/scientificreports/ and analysis" section, we use our formula to fit the experimental data in Ref. 23 , which give better fits than the formula derived without spin effect. In brief, we confirm the existence of the spin caloritronic effects.…”

Section: Formalismmentioning

confidence: 99%

“…We have deduced the general formula of the transverse temperature gradient in "Formalism" section, and in this section we will use our formula to fit the experimental data in experiment 23 . Because the temperature difference in the y direction is obtained by measuring the voltage at both ends of the electrode by thermocouple, i.e.…”

Section: Fitting and Analysismentioning

confidence: 99%

See 3 more Smart Citations

Identification of spin effects in the anomalous Righi–Leduc effect in ferromagnetic metals

Zhou

et al. 2020

Sci Rep

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Section: Fitting and Analysismentioning

confidence: 74%

Section: Identification Of Spin Effects In the Anomalous Righi-leduc mentioning

confidence: 99%

Section: Formalismmentioning

confidence: 99%

Section: Fitting and Analysismentioning

confidence: 99%

See 2 more Smart Citations

Identification of spin effects in the anomalous Righi–Leduc effect in ferromagnetic metals

Zhou

et al. 2020

Sci Rep

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“…This is the so-called longitudinal spin-Seebeck effect (LSSE) 3,4 . Although the validity of the SSE has been challenged by the parasitic thermal electric effect and thermal Hall effect, such as the anomalous Nernst effect (ANE) [4][5][6] , magnon Hall effect (MHE) 7,8 and anomalous Righi-Leduc effect (ARLE) 9,10 , it has been verified in many YIG-based heterostructures that LSSE remains a reliable methodology to investigate pure spin current phenomena in the framework of spin caloritronics 5,11 .…”

Section: Introductionmentioning

confidence: 99%

Strong spin orientation-dependent spin current diffusion and inverse spin Hall effect in a ferromagnetic metal

Zhu

Zheng

et al. 2020

NPG Asia Mater

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Pure spin current transport has become the central point of the state-of-the-art spintronics. While most spin current phenomena have been extensively explored, aspects of the pure spin current injected into ferromagnetic metals are far from completely understood. The reports on a fundamental problem, i.e. the spin relaxation asymmetry with spin current polarization collinear or transverse to the magnetization of ferromagnetic metals, are quite controversial. By employing a Y 3 Fe 5 O 12 (YIG)/Cu/Ni 80 Fe 20 (Py)/Ir 25 Mn 75 (IrMn) spin valve heterostructure with the thermal inverse spin Hall effect (ISHE) of a Py well separated from other thermoelectric transport and thermal Hall effects, we find that the ISHE signal amplitude in 10 nm Py increases by 80% when changing the relative orientation of the YIG and Py magnetization from orthogonal (⊥) to collinear (||). Moreover, the spin-diffusion length λ sf and effective spin Hall angle θ eff SH of Py are also spin orientation dependent and vary from λ ? sf = 1.0 ± 0.1 nm to λ k sf = 2.8 ± 0.5 nm with θ eff SH ? ð Þ=θ eff SH k ð Þ = 1.5, respectively. Our results demonstrate magnetization orientation-dependent spin relaxation and spin injection efficiency of a pure spin current, revealing that exchange interactions in ferromagnetic metals strongly affect the transport of the pure spin current.

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Crossover from Positive to Negative Spin Hall Signal in a Ferromagnetic Metal Induced by the Magnetization Modulated Interface Effect

Zhu

Liu

Zhang

et al. 2023

Advanced Physics Research

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The spin Hall effect and its inverse (SHE/ISHE), describing the charge‐to‐spin interconversion, are of critical importance to the fundamental physics involving spin‐orbit coupling and the application of spintronic devices. These phenomena in nonmagnetic materials are reasonably understood after extensive studies. In ferromagnetic metals, however, the fundamental issue of generation and transport of pure spin current, especially the interplay of charge‐to‐spin interconversion and magnetization, is as‐yet poorly understood. Here, direct experimental evidence for the sign change in ISHE by injecting a spin current from Y3Fe5O12 into a Fe film via a Cu spacer is reported. The sizable negative ISHE signal (VISHE) in nanometer‐thick Fe films reverses its sign with a comparable magnitude when Fe magnetization is varied from a longitudinal to transverse orientation with respect to spin current polarization. With decreasing Fe thickness, this negative longitudinal VISHE increases rapidly to a larger positive value in magnitude. The opposite spin Hall angles for longitudinally and transversely polarized spin currents are reproduced by first‐principles transport calculations and the sign change is attributed to the anisotropic contribution at the ferromagnetic interface. This work lays a firm foundation for manipulating spin‐to‐charge interconversion with an extra degree of freedom of magnetization orientation through ferromagnetic metals.

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Anomalous and planar Righi-Leduc effects in Ni80Fe20 ferromagnets

Cited by 15 publications

References 32 publications

Identification of spin effects in the anomalous Righi–Leduc effect in ferromagnetic metals

Identification of spin effects in the anomalous Righi–Leduc effect in ferromagnetic metals

Strong spin orientation-dependent spin current diffusion and inverse spin Hall effect in a ferromagnetic metal

Crossover from Positive to Negative Spin Hall Signal in a Ferromagnetic Metal Induced by the Magnetization Modulated Interface Effect

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