Novel single-layer vanadium sulphide phases

Fabian Arnold; Raluca-Maria Stan; Sanjoy K. Mahatha; H. E. Lund; Davide Curcio; Maciej Dendzik; Harsh Bana; Elisabetta Travaglia; Luca Bignardi; Paolo Lacovig; Daniel Lizzit; Zheshen Li; Marco Bianchi; Jill A. Miwa; Martin Bremholm; Silvano Lizzit; Philip Hofmann; C. E. Sanders

doi:10.1088/2053-1583/aad0c8

Novel single-layer vanadium sulphide phases

Fabian Arnold, Raluca-Maria Stan, Sanjoy K. Mahatha, H. E. Lund, Davide Curcio, Maciej Dendzik, Harsh Bana, Elisabetta Travaglia, Luca Bignardi, Paolo Lacovig, Daniel Lizzit, Zheshen Li, Marco Bianchi, Jill A. Miwa, Martin Bremholm, Silvano Lizzit, Philip Hofmann, C. E. Sanders^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

55 Citations (Scopus)

Abstract

VS2 is a challenging material to prepare stoichiometrically in the bulk, and the single layer has not been successfully isolated before now. Here we report the first realization of single-layer VS2, which we have prepared epitaxially with high quality on Au(1 1 1) in the octahedral (1T) structure. We find that we can deplete the VS2 lattice of S by annealing in vacuum so as to create an entirely new 2D compound that has no bulk analogue. The transition is reversible upon annealing in an H2S gas atmosphere. We report the structural properties of both the stoichiometric and S-depleted compounds on the basis of low-energy electron diffraction, x-ray photoelectron spectroscopy and diffraction, and scanning tunneling microscopy experiments.

Original language	English
Article number	045009
Journal	2D materials
Volume	5
Issue	4
Number of pages	11
ISSN	2053-1583
DOIs	https://doi.org/10.1088/2053-1583/aad0c8
Publication status	Published - 25 Jul 2018

Keywords

x-ray photoelectron diffraction
scanning tunneling microscopy
x-ray photoelectron spectroscopy
VS2
low-energy electron diffraction
X-RAY PHOTOELECTRON
MAGNETIC-PROPERTIES
TRANSITION
MOS2
SPECTROSCOPY
NANOSHEETS
CRYSTALS
FERROMAGNETISM
SE

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https://arxiv.org/pdf/1803.07999.pdf

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@article{19423550affd475a848c94437c4bc1c7,

title = "Novel single-layer vanadium sulphide phases",

abstract = "VS2 is a challenging material to prepare stoichiometrically in the bulk, and the single layer has not been successfully isolated before now. Here we report the first realization of single-layer VS2, which we have prepared epitaxially with high quality on Au(1 1 1) in the octahedral (1T) structure. We find that we can deplete the VS2 lattice of S by annealing in vacuum so as to create an entirely new 2D compound that has no bulk analogue. The transition is reversible upon annealing in an H2S gas atmosphere. We report the structural properties of both the stoichiometric and S-depleted compounds on the basis of low-energy electron diffraction, x-ray photoelectron spectroscopy and diffraction, and scanning tunneling microscopy experiments.",

keywords = "x-ray photoelectron diffraction, scanning tunneling microscopy, x-ray photoelectron spectroscopy, VS2, low-energy electron diffraction, X-RAY PHOTOELECTRON, MAGNETIC-PROPERTIES, TRANSITION, MOS2, SPECTROSCOPY, NANOSHEETS, CRYSTALS, FERROMAGNETISM, SE",

author = "Fabian Arnold and Raluca-Maria Stan and Mahatha, {Sanjoy K.} and Lund, {H. E.} and Davide Curcio and Maciej Dendzik and Harsh Bana and Elisabetta Travaglia and Luca Bignardi and Paolo Lacovig and Daniel Lizzit and Zheshen Li and Marco Bianchi and Miwa, {Jill A.} and Martin Bremholm and Silvano Lizzit and Philip Hofmann and Sanders, {C. E.}",

year = "2018",

month = jul,

day = "25",

doi = "10.1088/2053-1583/aad0c8",

language = "English",

volume = "5",

journal = "2D materials",

issn = "2053-1583",

publisher = "IOP Publishing",

number = "4",

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TY - JOUR

T1 - Novel single-layer vanadium sulphide phases

AU - Arnold, Fabian

AU - Stan, Raluca-Maria

AU - Mahatha, Sanjoy K.

AU - Lund, H. E.

AU - Curcio, Davide

AU - Dendzik, Maciej

AU - Bana, Harsh

AU - Travaglia, Elisabetta

AU - Bignardi, Luca

AU - Lacovig, Paolo

AU - Lizzit, Daniel

AU - Li, Zheshen

AU - Bianchi, Marco

AU - Miwa, Jill A.

AU - Bremholm, Martin

AU - Lizzit, Silvano

AU - Hofmann, Philip

AU - Sanders, C. E.

PY - 2018/7/25

Y1 - 2018/7/25

N2 - VS2 is a challenging material to prepare stoichiometrically in the bulk, and the single layer has not been successfully isolated before now. Here we report the first realization of single-layer VS2, which we have prepared epitaxially with high quality on Au(1 1 1) in the octahedral (1T) structure. We find that we can deplete the VS2 lattice of S by annealing in vacuum so as to create an entirely new 2D compound that has no bulk analogue. The transition is reversible upon annealing in an H2S gas atmosphere. We report the structural properties of both the stoichiometric and S-depleted compounds on the basis of low-energy electron diffraction, x-ray photoelectron spectroscopy and diffraction, and scanning tunneling microscopy experiments.

AB - VS2 is a challenging material to prepare stoichiometrically in the bulk, and the single layer has not been successfully isolated before now. Here we report the first realization of single-layer VS2, which we have prepared epitaxially with high quality on Au(1 1 1) in the octahedral (1T) structure. We find that we can deplete the VS2 lattice of S by annealing in vacuum so as to create an entirely new 2D compound that has no bulk analogue. The transition is reversible upon annealing in an H2S gas atmosphere. We report the structural properties of both the stoichiometric and S-depleted compounds on the basis of low-energy electron diffraction, x-ray photoelectron spectroscopy and diffraction, and scanning tunneling microscopy experiments.

KW - x-ray photoelectron diffraction

KW - scanning tunneling microscopy

KW - x-ray photoelectron spectroscopy

KW - VS2

KW - low-energy electron diffraction

KW - X-RAY PHOTOELECTRON

KW - MAGNETIC-PROPERTIES

KW - TRANSITION

KW - MOS2

KW - SPECTROSCOPY

KW - NANOSHEETS

KW - CRYSTALS

KW - FERROMAGNETISM

KW - SE

U2 - 10.1088/2053-1583/aad0c8

DO - 10.1088/2053-1583/aad0c8

M3 - Journal article

SN - 2053-1583

VL - 5

JO - 2D materials

JF - 2D materials

IS - 4

M1 - 045009

ER -

Novel single-layer vanadium sulphide phases

Abstract

Keywords

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