MEDIA FOR WRITING HIGHLY RESOLVED DOMAINS

Systems in accordance with the present invention can include a tip contactable with a media, the media including a phase change material in an embodiment (or polarity-dependent memory material or other memory material in other embodiments) disposed between a substrate and an overcoat. The overcoat i...

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Bibliographic Details
Main Authors ADAMS DONALD EDWARD, ANOIKIN YEVGENY VASILIEVICH, FAN ZHAOHUI
Format Patent
LanguageEnglish
Published 22.04.2008
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
INFORMATION STORAGE
MAGNETS
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
STATIC STORES
TRANSFORMERS
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Summary:Systems in accordance with the present invention can include a tip contactable with a media, the media including a phase change material in an embodiment (or polarity-dependent memory material or other memory material in other embodiments) disposed between a substrate and an overcoat. The overcoat is a co-deposited film having a conductive portion and a substantially non-conductive portion, the co-deposited film conducting current more efficiently through the overcoat than across the overcoat. The overcoat substantially directs the current so that a portion of the phase change material directly beneath the tip is heated to a sufficient temperature such that the structure of the material become disordered. The current is then removed from the phase change material, which is quickly cooled to form an domain having a resistivity larger than the crystalline bulk structure.
Bibliography:Application Number: KR20087001977