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Updated: Apr 25, 2026

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鉄磁性薄膜およびナノ構造物の全光学制御

C-H Lambert1, S Mangin2, B S D Ch S Varaprasad3

  • 1Center for Magnetic Recording Research, University of California San Diego, La Jolla, CA 92093-0401, USA. Institut Jean Lamour, UMR CNRS 7198-Université de Lorraine-BP 70239, F-54506 Vandoeuvre, France.

Science (New York, N.Y.)
|August 23, 2014
PubMed
まとめ

研究者は,光が磁気を操作できることを示し,鉄磁気材料の光学制御を実証しました. この発見は,将来のデータメモリとストレージ技術に広範囲に及ぶ影響を及ぼします.

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Ferromagnetism01:31

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Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
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