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Purdue's self-assembled 'nanorings' could boost computer memory

Researchers at Purdue University have created tiny magnetic rings that can store information at room temperature and are self-assembled, promising a new approach to non-volatile computer memory. The nanorings' magnetic states can be switched by applying a magnetic field, paving the way for faster and more affordable computer memories.

SourcePurdue University·JournalAngewandte Chemie·DateDec 10, 2003

Magnetism to its lowest terms

An international team observed ferromagnetism in one-dimensional cobalt chains, which exhibit both short- and long-range magnetic order. The chains' localized orbital magnetic moments are much larger than those in thin films or bulk crystals, opening up new possibilities for nanoscale magnetic structures.

SourceMax-Planck-Gesellschaft·JournalNature·DateMar 21, 2002

New way to write to magnetic chips

Researchers at Cornell University have developed a method to switch the orientation of magnetic domains in thin layers, allowing for the creation of high-density computer memory chips. The effect works by passing an electric current through a 'sandwich' of cobalt and copper layers, resulting in non-parallel magnetic moments.

SourceCornell University·JournalScience·DateAug 25, 1999