A depiction of the global order of magnetic charge ice. Orange-red areas represent the positive charges; blue areas represent negative charges. Credit: Yong-Lei Wang and Zhili Xiao
A team has created a new material, called “rewritable magnetic charge ice,” that permits an unprecedented degree of control over local magnetic fields and could pave the way for new computing technologies. With potential applications involving data storage, memory and logic devices, magnetic charge ice could someday lead to smaller and more powerful computers or even play a role in quantum computing.
Current magnetic storage and recording devices, such as computer hard disks, contain nanomagnets with 2 polarities, each of which is used to represent either 0 or 1, binary digits...
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