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Nature Nanotechnology 3, 710–711 (1 December 2008) | doi:10.1038/nnano.2008.356

Nanomechatronics: A new twist on a classic experiment

Alexey A. Kovalev

In 1915, Albert Einstein and Wander Johannes de Haas performed an experiment in which they applied a magnetic field to a cylinder made of ferromagnetic material. This caused the magnetic domains in the cylinder — which had initially all pointed in different directions — to line up.