Data media with tuned thermal conductivity and magnetic permeability

Data media with tuned thermal conductivity and magnetic permeability

Various magnetic stack embodiments may be constructed with a soft magnetic underlayer (SUL) having a first thickness disposed between a substrate and a magnetic recording layer. A heatsink may have a second thickness and be disposed between the SUL and the magnetic recording layer. The first and sec...

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Bibliographische Detailangaben
Hauptverfasser: Wu Qihong, Thiele Jan-Ulrich, Peng YingGuo, Klemmer Timothy J, Chang KaiChieh, Zhu Xiaobin, Nolan Thomas P, Deng Yinfeng, Ju Ganping, Kubota Yukiko
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:Various magnetic stack embodiments may be constructed with a soft magnetic underlayer (SUL) having a first thickness disposed between a substrate and a magnetic recording layer. A heatsink may have a second thickness and be disposed between the SUL and the magnetic recording layer. The first and second thicknesses may each be tuned to provide predetermined thermal conductivity and magnetic permeability throughout the data media.