Leveraging functional structures of ultra-small dimensions to boost device storage density, thereby enabling "more storage in less space," marks a pioneering frontier where material science converges with information technology. Recently, a research team from the Institute of Physics at the Chinese Academy of Sciences made a groundbreaking discovery: one-dimensional charged domain walls within fluorite-structured ferroelectric materials. These domain walls are incredibly thin and narrow, with their thickness and width measuring approximately one-hundred-thousandth of a human hair's diameter. This finding lays a solid scientific groundwork for the development of devices boasting extreme storage density.
