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Revealing the 1D Nature of Electronic States in Phosphorene Chains

Krivenkov, Maxim ; Sajedi, Maryam ; Marchenko, Dmitry ; Golias, Evangelos LU orcid ; Muntwiler, Matthias ; Rader, Oliver and Varykhalov, Andrei (2025) In Small Structures 6(12).
Abstract

Phosphorene, a 2D allotrope of phosphorus, is technologically very appealing because of its semiconducting properties and narrow bandgap. Further reduction of the phosphorene dimensionality may spawn exotic properties of its electronic structure, including lateral quantum confinement and topological edge states. It is demonstrated that dispersions measured along and perpendicular to the phosphorene chains self-assembled on Ag(111) reveal pronounced electronic confinement resulting in a 1D band, flat and dispersionless perpendicular to the chain direction in momentum space. Density functional theory calculations reproduce the 1D band for the experimentally determined structure. It is shown that phosphorene chains aligned equiprobably to... (More)

Phosphorene, a 2D allotrope of phosphorus, is technologically very appealing because of its semiconducting properties and narrow bandgap. Further reduction of the phosphorene dimensionality may spawn exotic properties of its electronic structure, including lateral quantum confinement and topological edge states. It is demonstrated that dispersions measured along and perpendicular to the phosphorene chains self-assembled on Ag(111) reveal pronounced electronic confinement resulting in a 1D band, flat and dispersionless perpendicular to the chain direction in momentum space. Density functional theory calculations reproduce the 1D band for the experimentally determined structure. It is shown that phosphorene chains aligned equiprobably to three (Formula presented.) directions of the Ag(111) surface can be characterized by angle-resolved photoemission spectroscopy because the three rotational variants are separated in the angular domain. A semiconductor-to-metal phase transition is predicted upon increasing the density of the chain array, a promising approach to band structure engineering.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
1D, angle-resolved photoemission spectroscopy, chains, phosphorus, scanning tunneling microscopy
in
Small Structures
volume
6
issue
12
article number
e202500458
publisher
Wiley
external identifiers
  • scopus:105019084715
ISSN
2688-4062
DOI
10.1002/sstr.202500458
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2025 The Author(s). Small Structures published by Wiley-VCH GmbH.
id
c182bd69-99f0-4196-b101-58ba9fc754b1
date added to LUP
2026-01-22 11:05:40
date last changed
2026-01-22 11:05:49
@article{c182bd69-99f0-4196-b101-58ba9fc754b1,
  abstract     = {{<p>Phosphorene, a 2D allotrope of phosphorus, is technologically very appealing because of its semiconducting properties and narrow bandgap. Further reduction of the phosphorene dimensionality may spawn exotic properties of its electronic structure, including lateral quantum confinement and topological edge states. It is demonstrated that dispersions measured along and perpendicular to the phosphorene chains self-assembled on Ag(111) reveal pronounced electronic confinement resulting in a 1D band, flat and dispersionless perpendicular to the chain direction in momentum space. Density functional theory calculations reproduce the 1D band for the experimentally determined structure. It is shown that phosphorene chains aligned equiprobably to three (Formula presented.) directions of the Ag(111) surface can be characterized by angle-resolved photoemission spectroscopy because the three rotational variants are separated in the angular domain. A semiconductor-to-metal phase transition is predicted upon increasing the density of the chain array, a promising approach to band structure engineering.</p>}},
  author       = {{Krivenkov, Maxim and Sajedi, Maryam and Marchenko, Dmitry and Golias, Evangelos and Muntwiler, Matthias and Rader, Oliver and Varykhalov, Andrei}},
  issn         = {{2688-4062}},
  keywords     = {{1D; angle-resolved photoemission spectroscopy; chains; phosphorus; scanning tunneling microscopy}},
  language     = {{eng}},
  number       = {{12}},
  publisher    = {{Wiley}},
  series       = {{Small Structures}},
  title        = {{Revealing the 1D Nature of Electronic States in Phosphorene Chains}},
  url          = {{http://dx.doi.org/10.1002/sstr.202500458}},
  doi          = {{10.1002/sstr.202500458}},
  volume       = {{6}},
  year         = {{2025}},
}