Quantum well states and sizable Rashba splitting on Pb induced α-phase Bi/Si(111) surface reconstruction

Chi, Longxing; Singh, Chandra Veer; Nogami, J.

doi:10.1039/d1nr04588a

Cited by 7 publications

(5 citation statements)

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“…13,43,44 Current research continues to explore the development of surface modifications. [45][46][47][48][49][50] However, it also delves into GSS induced in novel 2D layered materials, including transition-metal dichalcogenides (TMDs), [51][52][53][54][55][56][57] MXenes, [58][59][60][61][62][63] and a variety of other sheets. [64][65][66][67][68][69][70][71][72] To facilitate the ongoing efforts, it is crucial to develop more robust strategies for enhancing spin splitting.…”

Section: Limitations Of Bychkov-rashba Picturementioning

confidence: 99%

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Rashba effect: a chemical physicist's approach

Szary

2023

Phys. Chem. Chem. Phys.

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Section: Limitations Of Bychkov-rashba Picturementioning

confidence: 99%

“…13,43,44 Current research continues to explore the development of surface modifications. 45–50 However, it also delves into GSS induced in novel 2D layered materials, including transition-metal dichalcogenides (TMDs), 51–57 MXenes, 58–63 and a variety of other sheets. 64–72…”

Section: What a Chemist Ought To Do?mentioning

confidence: 99%

Rashba effect: a chemical physicist's approach

Szary

2023

Phys. Chem. Chem. Phys.

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“…Subsequently, similar effects have been reported for Tl, Pb, and Bi layers on semiconductor surfaces like Si(111) 32,33,38 and Ge(111) 13,39,40 . Current research continues to explore the development of surface modifications [41][42][43][44][45][46] . However, it also delves into GSS induced in novel 2D layered materials, including transition-metal dichalcogenides (TMDs) [47][48][49][50][51][52][53] , MXenes [54][55][56][57][58][59] , and a variety of other sheets [60][61][62][63][64][65][66][67][68] .…”

Section: Limitations Of Bychkov-rashba Picturementioning

confidence: 99%

Rashba effect: a chemical physicist's approach

Szary

2023

Preprint

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Understanding the mechanisms underlying the emergence of giant spin splitting (GSS) is fundamental in the pursuit of more robust strategies for designing materials with desired spin splitting. This drive for material innovation continues to captivate a burgeoning community of early-career researchers with backgrounds in chemistry and material science. However, new to the field, they are often equipped only with the insight provided by the original Bychkov-Rashba model. Furthermore, daunted by the tight-binding perspective on the non-vanishing orbital angular momentum (OAM), they struggle to accurately account for the atomic spin-orbit iteration (SOI) in the formation of GSS. To address these challenges and equip young chemists with better-suited tools, this review aims to provide a more intuitive perspective on atomic interactions (orbital hybridization), structure symmetry, and atomic SOI in the formation of GSS. In pursuit of this goal, the review explores the Bychkov-Rashba model, its advantages, and limitations. Subsequently, it introduces the orbital framework, wherein GSS is modulated by atomic SOI and the interplay of OAM with the surface electrostatic field. Given the explicit dependence of both these factors on OAM, the review examines why OAM is typically quenched in crystal structures and how chemical bonds involving different orbital types can lead to its non-zero values in the presence of inversion symmetry breaking. Finally, with this chemistry-focused perspective, the review examines the rise of GSS in selected examples in selected materials.

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“…The discovery, characterization and control of electronic properties in low-dimensional materials reduced down to the atomic-scale limit are of special interest for nanoelectronics due to a number of fascinating effects such as unconventional superconductivity, 1 non-trivial topology, 2 flat bands, 3 the topological Hall effect, 4 strong spin-orbit coupling effects induced by the integration of heavy quasiparticles 5 or interface engineering, 6,7 highly anisotropic spin-polarized states [8][9][10] and other emergent effects promising for versatile applications in the nanotechnology industry. [11][12][13] It is noteworthy that spinorbit coupling (SOC) plays a decisive role in many electronic effects observed in quantum materials.…”

Section: Introductionmentioning

confidence: 99%