Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides

Shiyu Fan; Sabine Neal; Choongjae Won; Jaewook Kim; Deepak Sapkota; Feiting Huang; Junjie Yang; David G. Mandrus; Sang Wook Cheong; Jason T. Haraldsen; Janice L. Musfeldt

doi:10.1021/acs.nanolett.0c03292

Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides

Shiyu Fan, Sabine Neal, Choongjae Won, Jaewook Kim, Deepak Sapkota, Feiting Huang, Junjie Yang, David G. Mandrus, Sang Wook Cheong, Jason T. Haraldsen, Janice L. Musfeldt

Physics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We combine Raman scattering spectroscopy and lattice dynamics calculations to reveal the fundamental excitations of the intercalated metal monolayers in the FexTaS2 (x = 1/4, 1/3) family of materials. Both in- and out-of-plane modes are identified, each of which has trends that depend upon the metal-metal distance, the size of the van der Waals gap, and the metal-to-chalcogenide slab mass ratio. We test these trends against the response of similar systems, including Cr-intercalated NbS2 and RbFe(SO4)2, and demonstrate that the metal monolayer excitations are both coherent and tunable. We discuss the consequences of intercalated metal monolayer excitations for material properties and developing applications.

Original language	English (US)
Pages (from-to)	99-106
Number of pages	8
Journal	Nano Letters
Volume	21
Issue number	1
DOIs	https://doi.org/10.1021/acs.nanolett.0c03292
State	Published - Jan 13 2021

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Keywords

excitations of intercalated metal monolayers
intercalated transition metal dichalcogenides
structure-property relations involving metal monolayer excitations

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10.1021/acs.nanolett.0c03292

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title = "Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides",

abstract = "We combine Raman scattering spectroscopy and lattice dynamics calculations to reveal the fundamental excitations of the intercalated metal monolayers in the FexTaS2 (x = 1/4, 1/3) family of materials. Both in- and out-of-plane modes are identified, each of which has trends that depend upon the metal-metal distance, the size of the van der Waals gap, and the metal-to-chalcogenide slab mass ratio. We test these trends against the response of similar systems, including Cr-intercalated NbS2 and RbFe(SO4)2, and demonstrate that the metal monolayer excitations are both coherent and tunable. We discuss the consequences of intercalated metal monolayer excitations for material properties and developing applications.",

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author = "Shiyu Fan and Sabine Neal and Choongjae Won and Jaewook Kim and Deepak Sapkota and Feiting Huang and Junjie Yang and Mandrus, {David G.} and Cheong, {Sang Wook} and Haraldsen, {Jason T.} and Musfeldt, {Janice L.}",

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doi = "10.1021/acs.nanolett.0c03292",

language = "English (US)",

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T1 - Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides

AU - Fan, Shiyu

AU - Neal, Sabine

AU - Won, Choongjae

AU - Kim, Jaewook

AU - Sapkota, Deepak

AU - Huang, Feiting

AU - Yang, Junjie

AU - Mandrus, David G.

AU - Cheong, Sang Wook

AU - Haraldsen, Jason T.

AU - Musfeldt, Janice L.

PY - 2021/1/13

Y1 - 2021/1/13

N2 - We combine Raman scattering spectroscopy and lattice dynamics calculations to reveal the fundamental excitations of the intercalated metal monolayers in the FexTaS2 (x = 1/4, 1/3) family of materials. Both in- and out-of-plane modes are identified, each of which has trends that depend upon the metal-metal distance, the size of the van der Waals gap, and the metal-to-chalcogenide slab mass ratio. We test these trends against the response of similar systems, including Cr-intercalated NbS2 and RbFe(SO4)2, and demonstrate that the metal monolayer excitations are both coherent and tunable. We discuss the consequences of intercalated metal monolayer excitations for material properties and developing applications.

AB - We combine Raman scattering spectroscopy and lattice dynamics calculations to reveal the fundamental excitations of the intercalated metal monolayers in the FexTaS2 (x = 1/4, 1/3) family of materials. Both in- and out-of-plane modes are identified, each of which has trends that depend upon the metal-metal distance, the size of the van der Waals gap, and the metal-to-chalcogenide slab mass ratio. We test these trends against the response of similar systems, including Cr-intercalated NbS2 and RbFe(SO4)2, and demonstrate that the metal monolayer excitations are both coherent and tunable. We discuss the consequences of intercalated metal monolayer excitations for material properties and developing applications.

KW - excitations of intercalated metal monolayers

KW - intercalated transition metal dichalcogenides

KW - structure-property relations involving metal monolayer excitations

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U2 - 10.1021/acs.nanolett.0c03292

DO - 10.1021/acs.nanolett.0c03292

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AN - SCOPUS:85097793959

SN - 1530-6984

VL - 21

SP - 99

EP - 106

JO - Nano Letters

JF - Nano Letters

IS - 1

ER -

Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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