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arXiv · 2505.14487

Spin Pumping into two-dimensional systems

Yuya Ominato·Masaki Yama·Ai Yamakage·Mamoru Matsuo·Takeo Kato
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Abstract

In this review, we present recent theoretical developments on spin transport phenomena probed by ferromagnetic resonance (FMR) modulation in two-dimensional systems coupled to magnetic materials. We first address FMR linewidth enhancements induced by spin pumping at interfaces, emphasizing their potential as sensitive probes of superconducting pairing symmetries in two-dimensional superconductors. We then examine FMR modulation due to spin pumping into two-dimensional electron gases formed in semiconductor heterostructures, where the interplay of Rashba and Dresselhaus spin-orbit interactions enables gate-controlled spin transport and persistent spin textures. Finally, we investigate spin pumping in monolayer transition-metal dichalcogenides, where spin-valley coupling and Berry curvature effects lead to valley-selective spin excitations and a spin-current Hall effect. These developments demonstrate that the spin pumping technique provides a versatile tool for probing spin transport and spin-dependent phenomena in low-dimensional systems, offering a basis for future spintronics applications.

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Yuya Ominato, Masaki Yama, Ai Yamakage, Mamoru Matsuo, Takeo Kato. 2025-05-20. Spin Pumping into two-dimensional systems. https://doi.org/10.1088/1361-648x%2Fae1090

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