Rashba spin splitting of L-gap surface states on Ag(111) and Cu(111). Spin structure of the Shockley surface state on Au(111).
Spin splitting of an Au(111) surface state band observed with angle resolved photoelectron spectroscopy. Special issue on electron spectroscopy for Rashba spin–orbit interaction. New perspectives for Rashba spin–orbit coupling. This Review aims to offer an overview of recent progress in the development of condensed matter research that exploits the unique properties of spin–orbit coupling in non-centrosymmetric heterostructures. The vast field of Rashba-like physics is now blooming, with great attention paid to non-equilibrium mechanisms such as spin-to-charge conversion, but also to nonlinear transport effects.
Over the past 15 years, the emergence of topological materials has widened this research field by introducing complex forms of spin textures and orbital hybridization. The resulting interconnection between the electron’s momentum and its spin leads to various effects such as electric dipole spin resonance, anisotropic spin relaxation and the Aharonov–Casher effect, but also to electrically driven and optically driven spin galvanic effects. Spin–orbit coupling induces a unique form of Zeeman interaction in momentum space in materials that lack inversion symmetry: the electron’s spin is locked on an effective magnetic field that is odd in momentum.
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