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Article Dans Une Revue Physical Review Letters Année : 2021

Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves

Résumé

The spin absorption process in a ferromagnetic material depends on the spin orientation relative to the magnetization. Using a ferromagnet to absorb the pure spin current created within a lateral spin valve, we evidence and quantify a sizable orientation dependence of the spin absorption in Co, CoFe, and NiFe. These experiments allow us to determine the spin-mixing conductance, an elusive but fundamental parameter of the spin-dependent transport. We show that the obtained values cannot be understood within a model considering only the Larmor, transverse decoherence, and spin diffusion lengths, and rather suggest that the spin-mixing conductance is actually limited by the Sharvin conductance.
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Dates et versions

hal-03119506 , version 1 (24-01-2021)

Identifiants

Citer

M. Cosset-Chéneau, Laurent Vila, G. Zahnd, D. Gusakova, V. t. T Pham, et al.. Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves. Physical Review Letters, 2021, 126 (2), pp.027201. ⟨10.1103/PhysRevLett.126.027201⟩. ⟨hal-03119506⟩
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