Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides
Document Type
Article
Publication Date
1-13-2021
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.
Identifier
85097793959 (Scopus)
Publication Title
Nano Letters
External Full Text Location
https://doi.org/10.1021/acs.nanolett.0c03292
e-ISSN
15306992
ISSN
15306984
PubMed ID
33264028
First Page
99
Last Page
106
Issue
1
Volume
21
Grant
DMR-1629059
Fund Ref
U.S. Department of Energy
Recommended Citation
Fan, Shiyu; Neal, Sabine; Won, Choongjae; Kim, Jaewook; Sapkota, Deepak; Huang, Feiting; Yang, Junjie; Mandrus, David G.; Cheong, Sang Wook; Haraldsen, Jason T.; and Musfeldt, Janice L., "Excitations of Intercalated Metal Monolayers in Transition Metal Dichalcogenides" (2021). Faculty Publications. 4381.
https://digitalcommons.njit.edu/fac_pubs/4381
