Giant Rashba splitting of quasi-1D surface states on Bi/InAs(110)-(2$\times$1)

Abstract

Electronic states on the Bi/InAs(110)-(2$\times$1) surface and its spin-polarized structure are revealed by angle-resolved photoelectron spectroscopy (ARPES), spin-resolved ARPES, and density-functional-theory calculation. The surface state showed quasi-one-dimensional (Q1D) dispersion and a nearly metallic character; the top of the hole-like surface band is just below the Fermi level. The size of the Rashba parameter (${\alpha }_{\mathrm{R}}$) reached quite a large value ($\sim$5.5 eVÅ). The present result would provide a fertile playground for further studies of the exotic electronic phenomena in 1D or Q1D systems with the spin-split electronic states as well as for advanced spintronic devices.

arXiv comment8 pages (double column), 7 figures and 1 table

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Cited by in corpus (6)

• Rashba-like spin splitting along three momentum directions in trigonal layered PtBi2
• One-dimensionality of the spin-polarized surface conduction and valence bands of quasi-one-dimensional Bi chains on GaSb(110)-(2$\times$1)
• Fermi level tuning of one-dimensional giant Rashba system on a semiconductor substrate: Bi/GaSb(110)-(2x1)
• Giant Rashba-Splitting of One-Dimensional Metallic States in Bi Dimer Lines on InAs(100)
• Fluctuated spin-orbital texture of Rashba-split surface states in real and reciprocal space
• Optical study on electronic structure of the locally non-centrosymmetric CeRh${}_2$As${}_2$