dorsal/arxiv
View SchemaSpin Hall effect in van der Waals ferromagnet Fe$_{5}$GeTe$_{2}$
| Authors | Tomoharu Ohta, Yuto Samukawa, Nan Jiang, Yasuhiro Niimi, Kohei Yamagami, Yoshinori Okada, Yoshichika Otani, Kouta Kondou |
|---|---|
| Categories | |
| ArXiv ID | 2601.06274vv1 |
| URL | https://arxiv.org/abs/2601.06274 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We investigate the spin Hall effect (SHE) in a van der Waals (vdW) ferromagnet Fe$_{5}$GeTe$_{2}$ (FGT) with a Curie temperature $T_{\rm C}$ of 310 K utilizing the spin-torque ferromagnetic resonance method. In synchronization with the emergence of the ferromagnetic phase resulting in the anomalous Hall effect (AHE), a noticeable enhancement in the SHE was observed below $T_{\rm C}$. On the other hand, the SHE shows a different temperature dependence from the AHE: the effective spin Hall conductivity is clearly enhanced with decreasing temperature unlike the anomalous Hall conductivity, reflecting the variation of band-structure accompanied by the complicated magnetic ordering of the FGT. The results provide a deep understanding of the SHE in magnetic materials to open a new route for novel functionalities in vdW materials-based spintronic devices.
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"abstract": "We investigate the spin Hall effect (SHE) in a van der Waals (vdW) ferromagnet Fe$_{5}$GeTe$_{2}$ (FGT) with a Curie temperature $T_{\\rm C}$ of 310 K utilizing the spin-torque ferromagnetic resonance method. In synchronization with the emergence of the ferromagnetic phase resulting in the anomalous Hall effect (AHE), a noticeable enhancement in the SHE was observed below $T_{\\rm C}$. On the other hand, the SHE shows a different temperature dependence from the AHE: the effective spin Hall conductivity is clearly enhanced with decreasing temperature unlike the anomalous Hall conductivity, reflecting the variation of band-structure accompanied by the complicated magnetic ordering of the FGT. The results provide a deep understanding of the SHE in magnetic materials to open a new route for novel functionalities in vdW materials-based spintronic devices.",
"arxiv_id": "2601.06274",
"authors": [
"Tomoharu Ohta",
"Yuto Samukawa",
"Nan Jiang",
"Yasuhiro Niimi",
"Kohei Yamagami",
"Yoshinori Okada",
"Yoshichika Otani",
"Kouta Kondou"
],
"categories": [
"cond-mat.mes-hall"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Spin Hall effect in van der Waals ferromagnet Fe$_{5}$GeTe$_{2}$",
"url": "https://arxiv.org/abs/2601.06274",
"version": "v1"
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