FEPT-C-BASED SPUTTERING TARGET

Through the present invention, a thin film containing an FePt-based alloy and carbon, the thin film being capable of being used as a magnetic recording medium, is enabled to be formed using one target, and amount of particles is enabled to be reduced. An FePt-C-based sputtering target containing Fe,...

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Bibliographische Detailangaben
Hauptverfasser: GOTO, Yasuyuki, NISHIURA, Masahiro, YAMAMOTO, Takamichi, KUSHIBIKI, Ryousuke
Format: Patent
Sprache:eng
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Zusammenfassung:Through the present invention, a thin film containing an FePt-based alloy and carbon, the thin film being capable of being used as a magnetic recording medium, is enabled to be formed using one target, and amount of particles is enabled to be reduced. An FePt-C-based sputtering target containing Fe, Pt, and C, wherein the FePt-C-based sputtering target has a structure in which a C phase substantially being C is dispersed in an FePt-based alloy phase containing 33 mol% or more and 60 mol% or less of Pt with the balance substantially being Fe, an average value of the size indices a of the C phase is 4.0 ?m or more and 9.0 ?m or less, and an average value of the nonspherical indices b of the C phase is 3.0 or more.