Silicon surface with giant spin-splitting

Abstract

We demonstrate the induction of a giant Rashba-type spin-splitting on a semiconducting substrate by means of a Bi trimer adlayer on a Si(111) wafer. The in-plane inversion symmetry is broken so that the in-plane potential gradient induces a giant spin-splitting with a Rashba energy of about 140 meV, which is more than an order of magnitude larger than what has previously been reported for any semiconductor heterostructure. The separation of the electronic states is larger than their lifetime broadening, which has been directly observed with angular resolved photoemission spectroscopy. The experimental results are confirmed by relativistic first-principles calculations. We envision important implications for basic phenomena as well as for the semiconductor based technology.

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• Universal Intrinsic Spin-Hall Effect
• Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
• Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
• Intrinsic Spin Hall Effect in the Two Dimensional Hole Gas
• Mesoscopic Stern-Gerlach spin filter by nonuniform spin-orbit interaction
• Intrinsic Spin Hall Effect Induced by Quantum Phase Transition in HgCdTe Quantum Wells
• Tunable spin-gaps in a quantum-confined geometry
• Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas

Cited by in corpus (50)

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• Self-Assembled Nanowires with Giant Rashba-Type Band Splitting
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• A band structure scenario for the giant spin-orbit splitting observed at the Bi/Si(111) interface
• Modulated Interlayer Exciton Properties in a Two-Dimensional Moire Crystal
• Three-Dimensional Spin Rotations at the Fermi Surface of a Strongly Spin-Orbit Coupled Surface System
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• Atomic-layer Rashba-type superconductor protected by dynamic spin-momentum locking
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• Anisotropy effects on Rashba and topological insulator spin polarized surface states: a unified phenomenological description
• Spin-orbit coupling effects on the stability of two competing structures in Pb/Si(111) and Pb/Ge(111)
• Giant spin rotation under quasiparticle-photoelectron conversion: Joint effect of sublattice interference and spin-orbit coupling
• Intercalation of graphene on SiC(0001) via ion-implantation
• Microscopic origin of the relativistic splitting of surface states
• Tunable Giant Rashba-type Spin Splitting in PtSe${}_2$/MoSe${}_2$ Heterostructure
• Spin-flip transitions induced by time-dependent electric fields in surfaces with strong spin-orbit interaction
• High repetition pump-and-probe photoemission spectroscopy based on a compact fiber laser system
• Interband spin-orbit coupling between anti-parallel spin states in Pb quantum well states
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• Interlayer RKKY Coupling in Bulk Rashba Semiconductors under Topological Phase Transition
• A reinvestigation of the giant Rashba-split states on Bi-covered Si(111)
• Position and Spin Control by Dynamical Ultrastrong Spin-Orbit Coupling
• Anisotropy of transport in bulk Rashba metals
• Edge states and topological properties of electrons on the bismuth on silicon surface with giant spin-orbit coupling
• Phase biasing of a Josephson junction using Rashba-Edelstein effect
• Impurity-induced orbital magnetization in a Rashba electron gas
• Unconventional transport in low-density two-dimensional Rashba systems
• Effect of Parallel Magnetic Field on Superconductivity of Ultrathin Metal Films Grown on a Cleaved GaAs Surface
• Efficient Edelstein effects in one-atom-layer Tl-Pb compound
• Anisotropic spin gaps in BiAg${}_2$-Ag/Si(111)
• Rashba scattering in the low-energy limit
• Transport in two dimensional Rashba electron systems doped with interacting magnetic impurities
• Giant Spin-Orbit-Induced Spin Splitting in Bi Chains on GaAs(110)
• Combined large spin-splitting and one dimensional confinement in surface alloys
• Microscopic theory of the residual surface resistivity of Rashba electrons
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• Giant enhancement in Rashba spin-Seebeck effect in NiFe/p-Si thin films
• Quantum states and linear response in dc and electromagnetic fields for charge current and spin polarization of electrons at Bi/Si interface with giant spin-orbit coupling
• Fermi level tuning of one-dimensional giant Rashba system on a semiconductor substrate: Bi/GaSb(110)-(2x1)
• Spin-orbit effects at chiral surfaces
• Non-Magnetic Half-Metals
• Orbital ferromagnetism in interacting few-electron dots with strong spin-orbit coupling