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poster

MMM 2022

November 07, 2022

Minneapolis, United States

A coherent picture on the pure spin transport between Ag/Bi and ferromagnets

Inverse Rashba-Edelstein effect (IREE) 1 refers to the spin-to-charge conversion at the interface/surface with strong spin-orbit coupling and broken symmetry. Ag/Bi related system is a prototype system for studying the IREE and has been hotly discussed but with a long-term controversy 2-5. In a joint effort of both experiments and first-principles calculations, we reconcile almost all the published experimental data in literatures with controversial conclusions and provide a coherent picture on the pure spin transport between Ag/Bi and ferromagnets. We demonstrate a strong IREE at the interface between Ag/Bi with a ferromagnetic metal (FM) but not with a ferromagnetic insulator. This is in sharp contrast with the previously claimed IREE at Ag/Bi interface or inverse spin Hall effect dominated spin transport. In addition, a more than one order of magnitude modulation of IREE signal is realized for different Ag/Bi-FM interfaces, casting strong tunability and a new direction for searching efficient spintronics materials.

References
1 V. M. Edelstein, Solid State Commun. Vol. 73, p. 233 (1990). 2 J. C. R. Sánchez, L. Vila, and A. Fert, Nat. Commun. Vol. 4, p. 2944 (2013). 3 M. Matsushima, Y. Ando, and M. Shiraishi, Appl. Phys. Lett. Vol. 110, p. 072404 (2017). 4 D. Yue, W. W. Lin, and C. L. Chien, Phys. Rev. Lett. Vol. 121, p. 037201 (2018). 5 J. H. Shen, Z. Feng, and X. F. Jin, Phys. Rev. Lett. Vol. 126, p. 197201 (2021).

Next from MMM 2022

Absence of cross sublattice spin pumping and spin torques in collinear antiferromagnets: symmetry and microscopic theory
poster

Absence of cross sublattice spin pumping and spin torques in collinear antiferromagnets: symmetry and microscopic theory

MMM 2022

Junyu Tang
Junyu Tang and 1 other author

07 November 2022

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