Tunable topological electronic structures in Sb(111) bilayers: A first-principles study

Chuang, Feng‐Chuan; Hsu, Chia-Hsiu; Chen, Chia-Yu; Huang, Zhi-Quan; Ozoliņš, Vidvuds; Lin, Hsin; Bansil, Arun

doi:10.1063/1.4776734

Cited by 111 publications

(116 citation statements)

References 32 publications

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“…In particular, 2D TIs are predicted in thin films of almost every class of 3D TIs [e.g., Bi/Sb, Sn, Bi2Se3, Bi2Te3, Ge(Bi,Sb)2Te4, Tl-based chalcogenides]. Wada et al 2011;Chuang et al 2013;Singh et al 2013;Lin, Markiewicz et al 2010) The topological characteristics are sensitive to thickness, composition and strain, and are tunable by electrical gating. Substrates can modify the electronic structure and change the band topology.…”

Section: Ivd 2d Topological Materialsmentioning

confidence: 99%

“…15), and other devices for manipulating spin currents. Gupta et al 2014;Chuang et al 2013) Although silicene has been grown on various substrates, the resulting electronic and geometric structures may be quite different from those of freestanding silicene films. (Vogt et al 2012;Fleurence et al 2012;Meng et al 2013) Honeycomb III-V thin films are a natural extension of silicene, and low-buckled GaBi, InBi, and TlBi thin films are predicted to be 2D TIs.…”

Section: Ivd2 Graphenementioning

confidence: 99%

“…For example, Bi thin films are predicted to be 2D TIs, but Sb thin films are trivial and become nontrivial under applied strain. (Wada et al 2011;Chuang et al 2013) Some of these thin films have been synthesized in various experiments but there still is no transport evidence for their being QSH insulators. Chun-Lei et al 2013;Kim, Jin, et al 2014) A number of strategies for engineering topological states in 2D systems or their heterostructures have been proposed.…”

Section: Ivd 2d Topological Materialsmentioning

confidence: 99%

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Colloquium: Topological band theory

2016

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The first-principles band theory paradigm has been a key player not only in the process of discovering new classes of topologically interesting materials, but also for identifying salient characteristics of topological states, enabling direct and sharpened confrontation between theory and experiment. We begin this review by discussing underpinnings of the topological band theory, which basically involves a layer of analysis and interpretation for assessing topological properties of band structures beyond the standard band theory construct. Methods for evaluating topological invariants are delineated, including crystals without inversion symmetry and interacting systems. The extent to which theoretically predicted properties and protections of topological states have been verified experimentally is discussed, including work on topological crystalline insulators, disorder/interaction driven topological insulators (TIs), topological superconductors, Weyl semimetal phases, and topological phase transitions. Successful strategies for new materials discovery process are outlined. A comprehensive survey of currently predicted 2D and 3D topological materials is provided. This includes binary, ternary and quaternary compounds, transition metal and f-electron materials, Weyl and 3D Dirac semimetals, complex oxides, organometallics, skutterudites and antiperovskites. Also included is the emerging area of 2D atomically thin films beyond graphene of various elements and their alloys, functional thin films, multilayer systems, and ultra-thin films of 3D TIs, all of which hold exciting promise of wide-ranging applications. We conclude by giving a perspective on research directions where further work will broadly benefit the topological materials field.

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Section: Ivd 2d Topological Materialsmentioning

confidence: 99%

Section: Ivd2 Graphenementioning

confidence: 99%

Section: Ivd 2d Topological Materialsmentioning

confidence: 99%

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Colloquium: Topological band theory

2016

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“…χ is the stiffness parameter, and υ 0 the surface average over e 2χξ(R) [Eq. (6)] for the reciprocal lattice vector G = 0]. Since ξ (R) is periodic, Eq.…”

Section: Corrugated Morse Potential (Cmp)mentioning

confidence: 99%

“…4,5 Hence Sb(111) films do offer attractive features for potential applications in spintronics such as a tunable band gap and spin polarization. 6 The electronic surface states of antimony have been studied both experimentally and theoretically, [7][8][9][10][11][12][13] whereas for the surface dynamics of Sb(111), only theoretical investigations are available. 13 Furthermore, the atom-surface interaction as observed in scattering experiments has not been addressed, with the exception of a study of the adsorption of water on Sb(111).…”

Section: Introductionmentioning

confidence: 99%

Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations

Mayrhofer-Reinhartshuber

Kraus

Tamtögl

et al. 2013

Phys. Rev. B

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Helium atom scattering (HAS) was used to study the antimony Sb(111) surface beyond the hard-wall model. HAS angular distributions and drift spectra show a number of selective adsorption resonance features, which correspond to five bound-state energies for He atoms trapped in the surface-averaged He-Sb(111) potential. As their best representation, a 9-3 potential with a depth of 4.4 ± 0.1 meV was determined. Furthermore, the charge density corrugation of the surface was analyzed using close-coupling calculations. By using a hybrid potential, consisting of a corrugated Morse potential (short range) and a 9-3 potential (long range), a peak-to-peak corrugation of 17% was obtained. The kinematic focusing effects that occurred were in good agreement with surface phonon dispersion curves from already published density functional perturbation theory calculations.

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Epitaxial Growth of Main Group Monoelemental 2D Materials

Zhou

et al. 2020

Adv Funct Materials

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Since the discovery of graphene, 2D materials have attracted significant attention for their unique properties. Monoelemental 2D materials (ME2DMs) are of particular interest because of their superiority in synthetic exploration, excellent mobility, and wide range of band gaps over other 2D compounds. Substantial efforts are devoted to fabricate high‐quality materials through various substrates and reveal the growth mechanism at the atomic scale. In this review, the recent progress in the preparation of these ME2DMs is explored, the roles of different substrates is highlighted, and the challenges of and perspectives on their heterostructures is discussed.

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Tunable topological electronic structures in Sb(111) bilayers: A first-principles study

Cited by 111 publications

References 32 publications

Colloquium: Topological band theory

Colloquium: Topological band theory

Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations

Epitaxial Growth of Main Group Monoelemental 2D Materials

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