Transport and spin conversion of multi-carriers in semimetal bismuth

Abstract

In this paper, we report on the investigation of (1) the transport properties of multi-carriers in semi-metal Bi and (2) the spin conversion physics in this semimetal system in a ferrimagnetic insulator, yttrium-iron-garnet. Hall measurements reveal that electrons and holes co-exist in the Bi, with electrons being the dominant carrier. The results of a spin conversion experiment corroborate the results of the Hall measurement; in addition, the inverse spin Hall effect governs the spin conversion in the semimetal/insulator system. This study provides further insights into spin conversion physics in semimetal systems.

arXiv comment16 pages, 4 Figures

References in corpus (3)

• Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
• Scaling of spin Hall angle in 3d, 4d and 5d metals from Y3Fe5O12/metal spin pumping
• Self-induced inverse spin Hall effect in permalloy at room temperature

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• Direct detection of induced magnetic moment and efficient spin-to-charge conversion in graphene/ferromagnetic structures
• Quantitative investigation of the inverse Rashba-Edelstein effect in Bi/Ag and Ag/Bi on YIG
• Tuning spin-charge interconversion with quantum confinement in ultrathin Bi/Ge(111) films
• Unveiling the polarity of the spin-to-charge current conversion in $B{i}_{2}S{e}_3$
• Spin Hall effect driven by the spin magnetic moment current in Dirac materials
• Robust scheme for magnetotransport analysis in topological insulators
• Intrinsic and Extrinsic Spin Hall Effects of Dirac Electrons
• Intrinsic orbital and spin Hall effect in bismuth semimetal
• Observation of gigantic spin conversion anisotropy in bismuth
• Spin Pumping into Anisotropic Dirac Electrons
• Large spin to charge conversion in topological superconductor \b{eta}-PdBi2 at room temperature
• Spin-wave-induced lateral temperature gradient in a YIG thin film/GGG system excited in an ESR cavity
• Efficient spin-to-charge interconversion in Weyl semimetal TaP at room temperature
• Anisotropic spin Hall and spin Nernst effects in bismuth semimetal
• Interface enhanced helicity dependent photocurrent in metal/semimetal bilayers
• Sizable spin-transfer torque in Bi/Ni80Fe20 bilayer film
• Charge to spin conversion in atomically thin bismuth
• Temperature dependence of charge-to-spin conversion in rhombohedral (110) bismuth thin film
• Charge-to-spin conversion in epitaxial and polycrystalline Bi and Bi/Ag layers
• Weak anti-localization in spin-orbit coupled lattice systems: effect of non-adiabatic transitions and estimation of spin relaxation length