Observation of Rashba splitting on reconstructed surface

Zhu, Xie-Gang; Liu, Zheng; Li, Wei; Wen, Jing; Chen, Xi; Jia, Jin‐Feng; Ma, Xucun; He, Ke; Wang, Lili; Xue, Qunji

doi:10.1016/j.susc.2013.08.011

Cited by 7 publications

(3 citation statements)

References 17 publications

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“…To combine Rashba-effect based spintronics with a silicon technology metallic surface states with a strong spin-orbit coupling on a silicon surface 3 4 are demanded. Unfortunately, the most of the metal/silicon systems with spin-split surface state bands (e.g., 5 6 7 , Tl/Si(111)1 × 1 8 9 10 , 11 and Pt/Si(110)“6” × 5 12 ) are semiconducting . The only known exceptions are the Tl/Si(111)1 × 1 modified by adsorption of additional Tl 13 and modified by adsorption of In, Tl, Cs or Na 4 .…”

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confidence: 99%

A Strategy to Create Spin-Split Metallic Bands on Silicon Using a Dense Alloy Layer

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Bondarenko

Matetskiy

et al. 2014

Sci Rep

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To exploit Rashba effect in a 2D electron gas on silicon surface for spin transport, it is necessary to have surface reconstruction with spin-split metallic surface-state bands. However, metals with strong spin-orbit coupling (e.g., Bi, Tl, Sb, Pt) induce reconstructions on silicon with almost exclusively spin-split insulating bands. We propose a strategy to create spin-split metallic bands using a dense 2D alloy layer containing a metal with strong spin-orbit coupling and another metal to modify the surface reconstruction. Here we report two examples, i.e., alloying reconstruction with Na and Tl/Si(111)1 × 1 reconstruction with Pb. The strategy provides a new paradigm for creating metallic surface state bands with various spin textures on silicon and therefore enhances the possibility to integrate fascinating and promising capabilities of spintronics with current semiconductor technology.

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mentioning

confidence: 99%

A Strategy to Create Spin-Split Metallic Bands on Silicon Using a Dense Alloy Layer

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Bondarenko

Matetskiy

et al. 2014

Sci Rep

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“…46 On the other hand, the splitting of the Sb-related bands is very small, similar to the case of Sb reconstruction on Si(111). 47 Despite the fact that Pb is a heavier element than Sb, we suspect that the main reason for such different splitting of Pb and Sb bands might be related to different bonding of these chains, but this requires additional investigations.…”

Section: ■ Methodsmentioning

confidence: 92%

Evidence for Electronically Isolated Atomic Chains: Sb–Pb Structures on the Si(553) Surface

et al. 2021

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Metallic atomic chains weakly coupled to the substrate may be a practical implementation of extreme onedimensional quantum systems. We report a two-step method of assembling one-dimensional Sb atomic chains on an ordered stepped Si(553) surface with Pb nanoribbons. We show that Pb atoms act as a surfactant, induce the dissociation of Sb molecules, and enable the formation of monatomic chains. Combining atomistic modeling within density functional theory with scanning tunneling microscopy and angle-resolved photoemission spectroscopy, we demonstrate that the formed Sb chains are highly strained and at the same time electronically isolated, exhibiting extremely well-defined one-dimensional free-electron like behavior.

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“…, 29) Pt=Si(110) "6" × 5, 30) and Tl=Si(110) 1 × 1. 31) However, it was recognized that all the above reconstructions have a serious drawback, if one considers their prospects for spintronic applications.…”

Section: Surface Rashba Effectmentioning

confidence: 99%

One-atom-layer compounds on silicon and germanium

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Зотов

Саранин

2017

Jpn. J. Appl. Phys.

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Two-dimensional (2D) compounds having one-atomic-layer thickness represent a novel class of low-dimensional materials with potentially advanced properties. In the present progress review, we overview the recent results on the 2D compounds of metallic adsorbates on Si(111) and Ge(111) surfaces. The main attention is focused on their contribution to the very modern subjects of the surface science, namely surface Rashba effect and surface superconductivity. The possible prospects of studying 2D compounds are briefly discussed.

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Observation of Rashba splitting on reconstructed surface

Cited by 7 publications

References 17 publications

A Strategy to Create Spin-Split Metallic Bands on Silicon Using a Dense Alloy Layer

A Strategy to Create Spin-Split Metallic Bands on Silicon Using a Dense Alloy Layer

Evidence for Electronically Isolated Atomic Chains: Sb–Pb Structures on the Si(553) Surface

One-atom-layer compounds on silicon and germanium

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