Electrical measurement of the spin Hall effect isotropy in ferromagnets with strong spin-orbit interactions

Cosset‐Chéneau, Maxen; Fahmy, M. Husien; Kandazoglou, A.; Grèzes, Cécile; Brénac, A.; Teresi, S.; Sgarro, P.; Warin, P.; Marty, A.; Pham, Van Tuong; Attané, J. P.; Vila, Laurent

doi:10.1103/physrevb.106.l220405

Cited by 3 publications

(1 citation statement)

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“…[1] In these architectures, information is stored in a ferroelectric polarization state coupled to the spin-injection efficiency, [9,12] and to decrease the shunting of the produced charge current. [12][13][14] To date, most studies have focused on heavy metals, with relatively low spin-charge interconversion efficiencies and resistivities. [15] Therefore, the next natural strategies to optimize the signal of the spin-orbit readout device is to look for materials with higher resistivities [10] and higher spin-charge interconversion efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering

Teresi

Sebe

et al. 2023

Adv Funct Materials

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Driving a spin‐logic circuit requires the production of a large output signal by spin‐charge interconversion in spin‐orbit readout devices. This should be possible by using topological insulators, which are known for their high spin‐charge interconversion efficiency. However, high‐quality topological insulators have so far only been obtained on a small scale, or with large scale deposition techniques that are not compatible with conventional industrial deposition processes. The nanopatterning and electrical spin injection into these materials have also proven difficult due to their fragile structure and low spin conductance. The fabrication of a spin‐orbit readout device from the topological insulator Sb2Te3 deposited by large‐scale industrial magnetron sputtering on SiO2 is presented. Despite a modification of the Sb2Te3 layer structural properties during the device nanofabrication, a sizeable output voltage is measured that can be unambiguously ascribed to a spin‐charge interconversion process. The results pave the way for the integration of layered van der Waals materials in spin‐logic devices.

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Section: Introductionmentioning

confidence: 99%

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering

Teresi

Sebe

et al. 2023

Adv Funct Materials

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Nonreciprocal transport of thermally generated magnons

Cosset-Chéneau,

Tirion,

Wei

et al. 2024

Phys. Rev. B

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We demonstrate the nonreciprocity of electrically and thermally generated incoherent magnon transport using the magnetization direction of a Py wire placed on top of an ultrathin YIG film. We show that the transport properties of thermally generated magnons under a Py wire depend on the relative orientation between the temperature gradient and the Py-magnetization direction. The symmetries of this nonreciprocal magnon transport match with those predicted by the remote dipolar interaction between YIG and Py magnons, controlled by the chirality of the YIG magnon dipolar stray fields. We also show that the directional magnon generation by the spin Seebeck effect from the Py wire displays the symmetries expected from the chiral spin Seebeck effect. Published by the American Physical Society 2024

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Isotropic Spin Hall Effect in an Epitaxial Ferromagnet

Soya,

Yamada,

Hamaya

et al. 2023

Phys. Rev. Lett.

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Electrical measurement of the spin Hall effect isotropy in ferromagnets with strong spin-orbit interactions

Cited by 3 publications

References 64 publications

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering

Nonreciprocal transport of thermally generated magnons

Isotropic Spin Hall Effect in an Epitaxial Ferromagnet

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Electrical measurement of the spin Hall effect isotropy in ferromagnets with strong spin-orbit interactions

Cited by 3 publications

References 64 publications

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb2Te3 Deposited by Industrial Magnetron Sputtering

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb2Te3 Deposited by Industrial Magnetron Sputtering

Nonreciprocal transport of thermally generated magnons

Isotropic Spin Hall Effect in an Epitaxial Ferromagnet

Contact Info

Product

Resources

About

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering

Spin‐Orbit Readout Using Thin Films of Topological Insulator Sb₂Te₃ Deposited by Industrial Magnetron Sputtering