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Science 20 January 2006:
Vol. 311. no. 5759, pp. 344 - 345
DOI: 10.1126/science.1122627
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Perspectives

APPLIED PHYSICS:
Helical Spin Order on the Move

Franco Nori and Akira Tonomura

In magnetic materials, electron spins are arranged in parallel, antiparallel or other regular configurations. Electron microscopy of certain of these materials reveals the details of atomic spins that appear to be arranged in a helix.

F. Nori is in the Department of Physics, University of Michigan, MI 48109-1040, USA, and at the Frontier Research System, Riken, Saitama 351-0198, Japan. E-mail: nori{at}umich.edu A. Tonomura is at the Advanced Research Laboratory, Hitachi Ltd., Hatoyama, Saitama 350-0395, Japan, and also at the Frontier Research System, Riken, Saitama 351-0198, Japan. E-mail: tonomura{at}harl.hitachi.co.jp

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Science. ISSN 0036-8075 (print), 1095-9203 (online)