Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride

Ping Kwan Johnny Wong; Wen Zhang; Jun Zhou; Fabio Bussolotti; Xinmao Yin; Lei Zhang; Alpha T. N'Diaye; Simon A. Morton; Wei Chen; Johnson Goh; Michel P. de Jong; Yuan Ping Feng; Andrew T. S. Wee

doi:10.1021/acsnano.9b05349

Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride

Ping Kwan Johnny Wong^*, Wen Zhang, Jun Zhou, Fabio Bussolotti, Xinmao Yin, Lei Zhang, Alpha T. N'Diaye, Simon A. Morton, Wei Chen, Johnson Goh (Corresponding Author), Michel P. de Jong, Yuan Ping Feng, Andrew T. S. Wee

^*Corresponding author for this work

MESA+ Institute

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Abstract

We present a combined experimental and theoretical study of monolayer vanadium ditelluride, VTe2, grown on highly oriented pyrolytic graphite by molecular-beam epitaxy. Using various in situ microscopic and spectroscopic techniques, including scanning tunneling microscopy/spectroscopy, synchrotron X-ray and angle-resolved photoemission, and X-ray absorption, together with theoretical analysis by density functional theory calculations, we demonstrate direct evidence of the metallic 1T phase and 3d1 electronic configuration in monolayer VTe2 that also features a (4 × 4) charge density wave order at low temperatures. In contrast to previous theoretical predictions, our element-specific characterization by X-ray magnetic circular dichroism rules out a ferromagnetic order intrinsic to the monolayer. Our findings provide essential knowledge necessary for understanding this interesting yet less explored metallic monolayer in the emerging family of van der Waals magnets.

Original language	English
Pages (from-to)	12894-12900
Journal	ACS nano
Volume	13
Issue number	11
Early online date	6 Nov 2019
DOIs	https://doi.org/10.1021/acsnano.9b05349
Publication status	Published - 26 Nov 2019

Keywords

two-dimensional materials
transition-metal dichalcogenides
vanadium ditelluride
molecular beam epitaxy
magnetism
22/4 OA procedure

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10.1021/acsnano.9b05349

acsnano.9b05349Final published version, 3.7 MBLicence: Taverne

54 Citations
1 Comment/Letter to the editor

Erratum: Metallic 1T phase, 3d¹ electronic configuration and charge density wave order in molecular-beam epitaxy grown monolayer vanadium ditelluride (ACS Nano (2019) 13:11 (12894−12900) DOI: 10.1021/acsnano.9b05349)
Wong, P. K. J., Zhang, W., Zhou, J., Bussolotti, F., Yin, X., Zhang, L., N'Diaye, A. T., Morton, S. A., Chen, W., Goh, K. E. J., De Jong, M. P., Feng, Y. P. & Wee, A. T. S., 28 Jan 2020, In: ACS nano. 14, 1, p. 1210 1 p.
Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-review

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Wong, P. K. J., Zhang, W., Zhou, J., Bussolotti, F., Yin, X., Zhang, L., N'Diaye, A. T., Morton, S. A., Chen, W., Goh, J., de Jong, M. P., Feng, Y. P., & Wee, A. T. S. (2019). Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride. ACS nano, 13(11), 12894-12900. https://doi.org/10.1021/acsnano.9b05349

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title = "Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride",

abstract = "We present a combined experimental and theoretical study of monolayer vanadium ditelluride, VTe2, grown on highly oriented pyrolytic graphite by molecular-beam epitaxy. Using various in situ microscopic and spectroscopic techniques, including scanning tunneling microscopy/spectroscopy, synchrotron X-ray and angle-resolved photoemission, and X-ray absorption, together with theoretical analysis by density functional theory calculations, we demonstrate direct evidence of the metallic 1T phase and 3d1 electronic configuration in monolayer VTe2 that also features a (4 × 4) charge density wave order at low temperatures. In contrast to previous theoretical predictions, our element-specific characterization by X-ray magnetic circular dichroism rules out a ferromagnetic order intrinsic to the monolayer. Our findings provide essential knowledge necessary for understanding this interesting yet less explored metallic monolayer in the emerging family of van der Waals magnets.",

keywords = "two-dimensional materials, transition-metal dichalcogenides, vanadium ditelluride, molecular beam epitaxy, magnetism, 22/4 OA procedure",

author = "Wong, {Ping Kwan Johnny} and Wen Zhang and Jun Zhou and Fabio Bussolotti and Xinmao Yin and Lei Zhang and N'Diaye, {Alpha T.} and Morton, {Simon A.} and Wei Chen and Johnson Goh and {de Jong}, {Michel P.} and Feng, {Yuan Ping} and Wee, {Andrew T. S.}",

year = "2019",

month = nov,

day = "26",

doi = "10.1021/acsnano.9b05349",

language = "English",

volume = "13",

pages = "12894--12900",

journal = "ACS nano",

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publisher = "American Chemical Society",

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Wong, PKJ, Zhang, W, Zhou, J, Bussolotti, F, Yin, X, Zhang, L, N'Diaye, AT, Morton, SA, Chen, W, Goh, J, de Jong, MP, Feng, YP & Wee, ATS 2019, 'Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride', ACS nano, vol. 13, no. 11, pp. 12894-12900. https://doi.org/10.1021/acsnano.9b05349

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T1 - Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride

AU - Wong, Ping Kwan Johnny

AU - Zhang, Wen

AU - Zhou, Jun

AU - Bussolotti, Fabio

AU - Yin, Xinmao

AU - Zhang, Lei

AU - N'Diaye, Alpha T.

AU - Morton, Simon A.

AU - Chen, Wei

AU - Goh, Johnson

AU - de Jong, Michel P.

AU - Feng, Yuan Ping

AU - Wee, Andrew T. S.

PY - 2019/11/26

Y1 - 2019/11/26

N2 - We present a combined experimental and theoretical study of monolayer vanadium ditelluride, VTe2, grown on highly oriented pyrolytic graphite by molecular-beam epitaxy. Using various in situ microscopic and spectroscopic techniques, including scanning tunneling microscopy/spectroscopy, synchrotron X-ray and angle-resolved photoemission, and X-ray absorption, together with theoretical analysis by density functional theory calculations, we demonstrate direct evidence of the metallic 1T phase and 3d1 electronic configuration in monolayer VTe2 that also features a (4 × 4) charge density wave order at low temperatures. In contrast to previous theoretical predictions, our element-specific characterization by X-ray magnetic circular dichroism rules out a ferromagnetic order intrinsic to the monolayer. Our findings provide essential knowledge necessary for understanding this interesting yet less explored metallic monolayer in the emerging family of van der Waals magnets.

AB - We present a combined experimental and theoretical study of monolayer vanadium ditelluride, VTe2, grown on highly oriented pyrolytic graphite by molecular-beam epitaxy. Using various in situ microscopic and spectroscopic techniques, including scanning tunneling microscopy/spectroscopy, synchrotron X-ray and angle-resolved photoemission, and X-ray absorption, together with theoretical analysis by density functional theory calculations, we demonstrate direct evidence of the metallic 1T phase and 3d1 electronic configuration in monolayer VTe2 that also features a (4 × 4) charge density wave order at low temperatures. In contrast to previous theoretical predictions, our element-specific characterization by X-ray magnetic circular dichroism rules out a ferromagnetic order intrinsic to the monolayer. Our findings provide essential knowledge necessary for understanding this interesting yet less explored metallic monolayer in the emerging family of van der Waals magnets.

KW - two-dimensional materials

KW - transition-metal dichalcogenides

KW - vanadium ditelluride

KW - molecular beam epitaxy

KW - magnetism

KW - 22/4 OA procedure

U2 - 10.1021/acsnano.9b05349

DO - 10.1021/acsnano.9b05349

M3 - Article

SN - 1936-0851

VL - 13

SP - 12894

EP - 12900

JO - ACS nano

JF - ACS nano

IS - 11

ER -

Metallic 1T Phase, 3d(1) Electronic Configuration and Charge Density Wave Order in Molecular Beam Epitaxy Grown Monolayer Vanadium Ditelluride

Abstract

Keywords

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Research output

Erratum: Metallic 1T phase, 3d1 electronic configuration and charge density wave order in molecular-beam epitaxy grown monolayer vanadium ditelluride (ACS Nano (2019) 13:11 (12894−12900) DOI: 10.1021/acsnano.9b05349)

Cite this

Erratum: Metallic 1T phase, 3d¹ electronic configuration and charge density wave order in molecular-beam epitaxy grown monolayer vanadium ditelluride (ACS Nano (2019) 13:11 (12894−12900) DOI: 10.1021/acsnano.9b05349)