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

Description

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

Name Format Description Link
47 https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig8_eps2_V_dep_midas.csv.sha256
47 Readme file describing data. https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/readme.txt
47 https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig6_Y2_midas.csv.sha256
47 https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig7_eps_midas.csv.sha256
0 Data shown in Figure 6 of the paper "Measurements of nonlinear polarization dynamics in the tens of GHz" https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig6_Y2_midas.csv
47 https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig2_calculation_midas.py.sha256
0 Frequency-dependent data shown in Figure 8 of the paper "Measurements of nonlinear polarization dynamics in the tens of GHz" https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig8_eps2_freq_dep_midas.csv
47 https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig8_eps2_freq_dep_midas.csv.sha256
0 Python script to generate plots in Figure 2. https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig2_calculation_midas.py
0 Voltage-dependent data shown in Figure 8 of "Measurements of nonlinear polarization dynamics in the tens of GHz" https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig8_eps2_V_dep_midas.csv
0 Data shown in Figure 6 of the paper "Measurements of nonlinear polarization dynamics in the tens of GHz" https://data.nist.gov/od/ds/7589389138C4687EE0532457068193C91963/fig7_eps_midas.csv

Tags

  • tunability
  • loss
  • microwave-materials
  • nonlinear-measurements
  • permittivity

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