1. Russell P. Cowburn is at the Blackett Physics Laboratory, Imperial College, London, Prince Consort Road, London SW7 2BW, UK. e-mail: R.Cowburn@imperial.ac.uk

Abstract

The magnetization direction in the centre of a submicrometre magnetic disk can now be switched by an electrical current. This discovery demonstrates the potential of realizing all-electrically controlled magnetic memory devices.

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