PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND SYSTEMS THEREOF

In one embodiment, a perpendicular magnetic recording medium includes a crystalline seed layer having a pseudo-hcp structure with stacking faults formed above a soft magnetic underlayer, a first interlayer comprising Ru and one of W, Ta, Mo, and Nb formed above the crystalline seed layer, a second i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAMAI ICHIRO, HIROTSUNE AKEMI, YAHISA YOTSUO
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	In one embodiment, a perpendicular magnetic recording medium includes a crystalline seed layer having a pseudo-hcp structure with stacking faults formed above a soft magnetic underlayer, a first interlayer comprising Ru and one of W, Ta, Mo, and Nb formed above the crystalline seed layer, a second interlayer formed above the first interlayer, and a magnetic recording layer formed above the second interlayer. The first interlayer has a W concentration between about 32 at % and 50 at %, Mo in a concentration between about 36 at % and 52 at %, Ta in a concentration between about 20 at % and 30 at %, or Nb in a concentration between about 7 at % and 30 at %. In another embodiment, a system includes a recording medium as described above, a magnetic head for reading from and/or writing to the medium, a head slider for supporting the head, and a control unit coupled to the head.