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 ANOIKIN, YEVGENY, VASILIEVICH, FAN, ZHAOHUI, ADAMS, DONALD, EDWARD
Format Patent
LanguageEnglish
French
German
Published 19.03.2008
Subjects
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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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: EP20060785407