Evolution of the charge carrier plasmon in the one-dimensional metal TTF-TCNQ as a function of temperature and momentum
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Date
2019
Authors
Volume
6
Issue
10
Journal
Series Titel
Book Title
Publisher
Bristol : Institute of Physics Publishing
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Abstract
We have investigated the charge carrier plasmon in the quasi one-dimensional metal TTF-TCNQ using electron energy-loss spectroscopy. Our data reveal a negative plasmon dispersion with a slope that is independent of temperature, which is in agreement to predictions from model calculations and previous room temperature data. A plasmon energy shift upon temperature is observed, and we discuss possible contributions to this shift. The spectral width of the plasmon is rather temperature independent, but increases clearly above a momentum value of about 0.3 Å-1.
Description
Keywords
EELS, low-dimensional metals, Plasmon dispersion, Charge carriers, Dispersions, Electron energy loss spectroscopy, Electron scattering, Energy dissipation, Charge carrier plasmon, Low dimensional, Model calculations, Plasmon dispersion, Quasi-one-dimensional metals, Spectral widths, Temperature data, Temperature independents, Plasmons
Citation
Kovbasa, N., Graf, L., & Knupfer, M. (2019). Evolution of the charge carrier plasmon in the one-dimensional metal TTF-TCNQ as a function of temperature and momentum. 6(10). https://doi.org//10.1088/2053-1591/ab3f9d
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License
CC BY 3.0 Unported