ملخص
For bit-patterned media, media with low remanent magnetization (M r) and high M r regions are needed for storing information, which is usually achieved by lithographically defining magnetic and non-magnetic regions. In this work, we have investigated the use of ion beam modification of media surface to define the low and high M r states using a medium that is at a low M r state to start with. The low M r state is achieved by the use of synthetic antiferromagnetic coupling obtained in Co-alloy/Ru/Co-alloy trilayer structured film. Local ion beam modification at 30 keV energy using Ga ions was used to create high M r regions. AFM and MFM observations indicated that patterned regions of low and high M r can be observed with ion beam irradiation. This technique is a potential method to achieve patterned media without the need of planarization techniques.
اللغة الأصلية | English |
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الصفحات (من إلى) | 2611-2614 |
عدد الصفحات | 4 |
دورية | Journal of Nanoscience and Nanotechnology |
مستوى الصوت | 11 |
رقم الإصدار | 3 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - مارس 2011 |
منشور خارجيًا | نعم |
ASJC Scopus subject areas
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