Magnetic Nanostructures Patterned by Focused Ion Beam in an ultrathin Pt/Co/Pt film

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The magnetic properties of Co/Pt films can be modified and even controlled by ion beam irradiation. For example, the coercivity and magnetic anisotropy of a 1.4nm thick Co layer are reduced with increasing the Ga^+ ion dose. Images of the demagnetized states and remanent hystercsis loops are obtained for arrays of dots or tracks patterned by the focused ion beam technique. 20 nm wide sharp non-magnetic irradiated lines separate the magnetic dots or the tracks, the size of the dots or the width of the tracks varying from 1.8 μm down to 70 nm. The efficiency of the dipolar interaction is studied, and the use of such dot arrays for magnetic or magneto-optical recording discussed.
社団法人日本磁気学会の論文
2002-10-01

著者

Ferre J.
Laboratoire De Physlque Des Solides Umr Cnrs 8502 Univ. Paris-sud
Mougin A.
Laboratoire de Physique des Solides, Université Paris-Sud
Hyndman R.
Laboratoire de Physlque des Solides, UMR CNRS 8502, Univ. Paris-Sud
Repain V.
Laboratoire de Physlque des Solides, UMR CNRS 8502, Univ. Paris-Sud
Jamet J.
Laboratoire de Physlque des Solides, UMR CNRS 8502, Univ. Paris-Sud
Gierak J.
Laboratoire de Physique et de Nanostructures, Route de Nozay
Mailly D.
Laboratoire de Physique et de Nanostructures, Route de Nozay
Chappert C.
Institut d' Electronique Fondamentale, UMR CNRS 8622, Univ. Paris-Sud
Mathet V.
Institut d' Electronique Fondamentale, UMR CNRS 8622, Univ. Paris-Sud
Warin P.
Department of Physics and Astronomy, Univ. of Glasgow
Chapman J.
Department of Physics and Astronomy, Univ. of Glasgow
Warin P.
Department Of Physics And Astronomy Univ. Of Glasgow
Mailly D.
Laboratoire De Physique Et De Nanostructures Route De Nozay
Repain V.
Laboratoire De Physlque Des Solides Umr Cnrs 8502 Univ. Paris-sud
Mougin A.
Laboratoire De Physlque Des Solides Umr Cnrs 8502 Univ. Paris-sud
Gierak J.
Laboratoire De Physique Et De Nanostructures Route De Nozay
Mathet V
Institut D' Electronique Fondamentale Umr Cnrs 8622 Univ. Paris-sud
Mathet V.
Institut D'electronique Fondamentale Bat.
Jamet J.
Laboratoire De Physlque Des Solides Umr Cnrs 8502 Univ. Paris-sud
Hyndman R.
Laboratoire De Physlque Des Solides Umr Cnrs 8502 Univ. Paris-sud
Chappert C.
Institut D' Electronique Fondamentale Umr Cnrs 8622 Univ. Paris-sud
Chapman J.
Department Of Physics And Astronomy Univ. Of Glasgow
Mathet V.
Institut d' Electronique Fondamentale, UMR CNRS 8622, Univ. Paris-Sud
Ferre J.
Laboratoire de Physique des Solides, UMR CRNS 8502, Universite Paris-Sud

Magnetic Nanostructures Patterned by Focused Ion Beam in an ultrathin Pt/Co/Pt film

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