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Data for: ?Measurements of nonlinear polarization dynamicsin the tens of gigahertz?

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: August 03, 2026 at 03:50 AM | Dataset Last Updated: February 22, 2019
Included here are figures and other relevant data from the paper "Measurements of nonlinear polarization dynamics in the tens of GHz" to be published in Physical Review Applied.Abstract: Frequency-dependent linear permittivity measurements are commonplace in the literature, providing key insights into the structure of dielectric materials. These measurements describe a material's dynamic response to a small applied electric field. In contrast, nonlinear dielectric materials are widely used for their responses to large applied fields, including switching in ferroelectric materials, and field-tuning of the permittivity in paraelectric materials. These behaviors are described by nonlinear permittivity. Nonlinear permittivity measurements are fraught with technical challenges because of the complex electrical coupling between a sample and its environment. Here, we describe a technique for measuring the complex nonlinear permittivity that circumvents many of the difficulties associated with other approaches. We validate this technique by measuring a the nonlinear permittivity of a tunable Ba0.5Sr0.5TiO thin film up to 40 GHz and comparing our results with a phenomenological model. These measurements provide insight into the dynamics of nonlinear dielectric materials down to picosecond timescales.

Resources

11 resources available

  • Data for Figure 6

    COLUMN DATA, COMMA-DELIMITED.
  • Data for Figure 7

    COLUMN DATA, COMMA DELIMITED
  • Frequency-dependent data for Figure 8

    COLUMN DATA, COMMA DELIMITED
  • Script to generate plots in Figure 2

    TEXT FILE CONTAINING PYTHON SCRIPT
  • readme

    TEXT/PLAIN
  • Voltage-dependent data for Figure 8

    COLUMN DATA, COMMA DELIMITED
  • SHA256 File for Script to generate plots in Figure 2

    TEXT/PLAIN
  • SHA256 File for Data for figure 6

    TEXT/PLAIN
  • SHA256 File for Data for figure 7

    TEXT/PLAIN
  • SHA256 File for Voltage-dependent data for Figure 8

    TEXT/PLAIN
  • SHA256 File for Frequency-dependent data for Figure 8

    TEXT/PLAIN

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