Atomically Thin Group V Elemental Films: Theoretical Investigations of Antimonene Allotropes

Wang, Gaoxue; Pandey, Ravindra; Karna, Shashi P.

doi:10.1021/acsami.5b02441

Cited by 444 publications

(426 citation statements)

References 45 publications

Supporting

Mentioning

369

Contrasting

Unclassified

Order By: Relevance

“…Bi pm ×487 pm. These values agree well with the result of our calculations and existing literature values [17,22,23,25,34,[37][38][39]. Refer to supplementary table SI for full details, including experimental uncertainties.…”

Section: Resultssupporting

confidence: 92%

Engineering multiple topological phases in nanoscale Van der Waals heterostructures: realisation of α-antimonene

et al. 2017

View full text Add to dashboard Cite

Van der Waals heterostructures have recently been identified as providing many opportunities to create new two-dimensional materials, and in particular to produce materials with topologicallyinteresting states. Here we show that it is possible to create such heterostructures with multiple topological phases in a single nanoscale island. We discuss their growth within the framework of diffusion-limited aggregation, the formation of moiré patterns due to the differing crystallographies of the materials comprising the heterostructure, and the potential to engineer both the electronic structure as well as local variations of topological order. In particular we show that it is possible to build islands which include both the hexagonal β-and rectangular α-forms of antimonene, on top of the topological insulator α-bismuthene. This is the first experimental realisation of α-antimonene, and we show that it is a topologically non-trivial material in the quantum spin Hall class.

show abstract

Section: Resultssupporting

confidence: 92%

Engineering multiple topological phases in nanoscale Van der Waals heterostructures: realisation of α-antimonene

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Thus, the results of our work can be considered as an experimental verification of the possibility to control the properties of antimony allotropes by deformation effects predicted by the papers [27,38,40]. a b Fig.…”

Section: Discussion Of the Resultssupporting

confidence: 73%

“…As it was demonstrated in the papers [38,40] the starter mechanism of induced spin states in antimony differs significantly from other 2D materials: band inversion is not related to the elongation of covalent bonds but to the change in the bond angles.…”

Section: Discussion Of the Resultsmentioning

confidence: 93%

See 1 more Smart Citation

Structural heterogeneities and electronic effects in self-organized core-shell type structures of Sb

Kulikova¹,

Bityutskaya²,

Tuchin³

et al. 2017

LoM

View full text Add to dashboard Cite

The paper provides morphological and electro-physical characteristics of the set of structures of the core-shell type of antimony ranging from 10 -4 to 10 -6 m, obtained in a single-stage process as a result of spontaneous crystallization of the melt. It verifies that the structures obtained can be considered as an example of the new type of core-shell structures in a series of self-organized structures derived from their layered precursor. The structures consist of different forms of the same substance, where the core is represented by mono-crystalline gray antimony and the shell is a deformed two-dimensional film. Based on the overall data obtained, the shell of the structure can be described as a cover film with a variable thickness, which contains structural heterogeneities in the form of antimony allotropes, i.e. defective antimonene nano-layers with a high proportion of boundary atoms and dangling bonds. Structural heterogeneity foster electronic effects such as: localized charge contrast, which occurs when an electron beam is applied; emerging of conductive and non-conducting areas on the surface of the shell; electrostatic interaction of particles; ability of the structures to accumulate an excess charge and retain it for a long time. The change in the properties of the nano-shell of the spheroidal structure of the core-shell type of antimony can be considered as a consequence of its deformed structure.

show abstract

“…While both buckled and puckered honeycomb structures are found to be stable [19], buckled arsenene is energetically favored over puckered arsenene [18]. Experimentally the possibility of growing antimonene has been explored on Bi 2 Te 3 and Sb 2 Te 3 substrates [20].…”

Section: Introductionmentioning

confidence: 99%

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

2017

View full text Add to dashboard Cite

We study the thermoelectric properties of As and Sb monolayers (arsenene and antimonene) using density-functional theory and the semiclassical Boltzmann transport approach. The materials show large band gaps combined with low lattice thermal conductivities. Specifically, the small phonon frequencies and group velocities of antimonene lead to an excellent thermoelectric response at room temperature. We show that n-type doping enhances the figure of merit.

show abstract

Atomically Thin Group V Elemental Films: Theoretical Investigations of Antimonene Allotropes

Abstract: Group3

Cited by 444 publications

References 45 publications

Engineering multiple topological phases in nanoscale Van der Waals heterostructures: realisation of α-antimonene

Engineering multiple topological phases in nanoscale Van der Waals heterostructures: realisation of α-antimonene

Structural heterogeneities and electronic effects in self-organized core-shell type structures of Sb

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

Contact Info

Product

Resources

About