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dielectric constant
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In a study published in the journal Dalton Transactions, 2024, 53, 7044 -7052 on April 1, 2024, researchers led by Professor Ayako Yamamoto from the Shibaura Institute of Technology, including master student Kimitoshi Murase have developed a displacement-type ferroelectric material with a high dielectric constant.
"The high-pressure phase obtained this time confirmed the presence of a polar structure from the observation of second harmonic generation of the same strength as potassium niobate, and a relatively high relative permittivity was also obtained. As for the dielectric constant, it is expected that values equal to or greater than those of potassium niobate can be obtained by increasing the sample density, as predicted from theoretical calculations," says Prof. Yamamoto.
The researchers are planning further experiments to accurately measure the dielectric constant and demonstrate the high polarization of RbNbO3.
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.
It also allows for better touch sensitivity since its dielectric constant is over 9 while Gorilla glass is slightly over 7.
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