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ferroelectric nanostructuresEurekAlert!
•88% Informative
Researchers at KAIST in Korea have solved a 20-year-old challenge by using a technique called atomic electron tomography.
They measured the positions of cation atoms inside barium titanate (BaTiO3) nanoparticles, a well-known ferroelectric material, in three dimensions.
They were able to calculate the internal three -dimensional polarization distribution at the single-atom level.
By controlling the number and orientation of these polarization distributions, it is expected that this can be utilized into next-generation high-density memory devices that can store more than 10,000 times the amount of information in the same-sized device.
Chaehwa Jeong , Juhyeok Lee , Hyesung Jo , Jaewhan Oh and Yongsoo Yang have patent application ( Korea , 10-2023-0133750 ), which disclose three -dimensional polarization mappings for ferroelectrics.
The remaining authors declare no competing interests.
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