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Stories about: antiferromagnet

Magnets' Noisy Secrets Have you ever heard of magnets making noise? It's called the Barkhausen effect and it's a name given to the noise in the magnetic output of a ferromagnet when the magnetizing force applied to it is changed.It's easy for scientists to measure the minute thermal fluctuations in the magnetization of ferr... 24 May 2007 09:24 GMT