Nano Science and Technology Institute

Nanorings Could Hold Key to Faster Computers

Researchers at The Johns Hopkins University have discovered that asymmetrical “nanorings” —tiny, irregularly shaped nickel or cobalt rings—can serve as memory cells. Nanorings could be used to create a coin-sized hard drive for computers and bring advantages such as faster operating speeds and consuming much less energy. Doctoral candidates Frank Q. Zhu and Chia-Ling Chien discovered that the nanorings can store a large amount of information, and are resistant to the problem of stray magnetic fields. The production of asymmetrical nanorings would encompass multiple steps involving self-assembly, thin film deposition, and dry etching.

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