Original data for "Experimental signatures of the transition from acoustic plasmon to electronic sound in graphene"

  1. Ruiz, David Barcons 1
  2. Hesp, Niels 1
  3. Sheinfux, Hanan Herzig 1
  4. Marimón, Carlos Ramos 1
  5. Maissen, Curdin 2
  6. Principi, Alessandro 3
  7. Asgari, Reza 4
  8. Taniguchi, Takashi 5
  9. Watanabe, Kenji 6
  10. Polini, Marco 7
  11. Hillenbrand, Rainer 2
  12. Torre, Iacopo 1
  13. Koppens, Frank 1
  1. 1 ICFO - Institut de Ciencies Fotoniques
  2. 2 Centro de Investigación Cooperativa en Nanociencias
    info

    Centro de Investigación Cooperativa en Nanociencias

    San Sebastián, España

  3. 3 Department of Physics and Astronomy, The University of Manchester
  4. 4 School of Physics, University of New South Wales
  5. 5 International Center for Materials Nanoarchitectonics, National Institute for Materials Science
  6. 6 Research Center for Functional Materials, National Institute for Materials Science
  7. 7 Dipartimento di Fisica, Università di Pisa
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Editor: Zenodo

Año de publicación: 2023

Tipo: Dataset

CC BY 4.0

DOI: 10.5281/ZENODO.8298068 lock_openAcceso abierto editor

Resumen

This repository contains the original SNOM data and fits to them used in "Experimental signatures of the transition from acoustic plasmon to electronic sound in graphene" by D. Barcons Ruiz et al.<br> - The Raw_data folder contains the original scans recorded with a neaSNOM (neaspec Gmbh) microscope for the two devices in .dump format. <br> These data are easily accesible with Gwyddion. <br> The first part of the filename indicates the date of acquisition and the scanning conditions.<br> The suffix meaning of the individual scans within the raw data folders is:<br> - First element:<br> CT: topography<br> MX: X-harmonic of the mechanical signal (piezo)<br> BX: X-harmonic of the photocurrent signal<br> - Second element:<br> B/F: Backwards/Forward scans<br> - Third element:<br> abs: absolute value<br> arg: phase (-pi to pi)<br> <br> Ex:<br> 2022-02-02_10-48-16_2D-scan_4.25THz_GRp0.1V_GLsweep_m3Vtop1V_B1-B-abs.dump<br> 2022-02-02: date<br> 10-48-16: time<br> 2D-scan: scan type<br> 4.25THz: laser freq.<br> GRp0.1V_GLsweep_m3Vtop1V: scan conditions<br> B1-B-abs: 0th harmonic of the photocurrent signal, backwards trace, absolute value<br> <br> - The folder Figure2 contains the example traces extracted from the scans and shown in Fig.2 of the paper, and the fits to the optical signal, for both device 1 and 2. - The folder Figure3 contains the parameters obtained from the fitting of the plasmon fringes realizad as described in the Supplementary Information for both devices.<br> The real part of the plasmon wavevector is used to calculate the plasmon velocity data appearing in Fig.3 A-B of the paper and constitutes the most important dataset.<br> For every doubt on how to read or interpret these data please refer to the corresponding authors of the paper: <br> Prof. F.H.L. Koppens (frank.koppens@icfo.eu), <br> Dr. Iacopo Torre (iacopo.torre@icfo.eu).