Newly discovered particles behave as powerful magnets that, one day, could change data storage.
Researchers have created extremely small, thermally stable magnetic particles. These CoFe2C nanoparticles have magnetic properties comparable to some rare earth magnets, the strongest permanent magnets ever created, at sizes as small as 5 nanometers, a million times smaller than an ant.
The next generation of thermally stable data storage devices demands materials that are highly magnetic in a specific direction at small particle sizes. The new CoFe2C nanoparticles accomplish this goal and can lead to nano-magnets that work at room temperature.
Van Vleck’s Nobel-prize winning explanation of the quantum origin of magnetism dates back to 1937.