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Some, such as hexagonal boron nitride, can act as gate dielectrics, having a dielectric constant similar to that of silicon dioxide, which was routinely used for that job until about a decade ago.—IEEE Spectrum, 21 Jan. 2020 Polymer capacitors have great development potential to achieve higher ratings on density, field stress and temperature (yet currently limited to 125°C) due to their working mechanism and dielectric materials advancement, yet higher dielectric constant polymers enable a high energy density.—IEEE Spectrum, 1 Nov. 2018 To solve this mystery, scientists used Mini-RF to measure the electrical property, known as the dielectric constant, of lunar soil on crater floors in the northern hemisphere of the moon.—Fox News, 7 July 2020
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