Magnetic recording medium



PURPOSE: To provide a magnetic recording medium having small dependency of magnetic characteristics on the termination degree of vacuum for film formation and having high coercive force even when the termination degree of vacuum for formation of the recording layer is low. CONSTITUTION: A magnetic recording layer and a protective layer to protect this magnetic recording layer are formed on a nonmagnetic substrate. The magnetic recording layer consists of a metal thin film containing Co-Cr-Pt-M (M is metal selected from Nb, Ti, Pr, Mo, Rh, Ru and V). COPYRIGHT: (C)1993,JPO&Japio
(57)【要約】 【構成】非磁性基板上に、磁気記録層、この磁気記録層 を保護するための保護層を設た磁気記録媒体であって、 磁気記録層がCo−Cr−Pt−M(M:Nb、Ti、 Pr、Mo、Rh、Ru、Vから選ばれる金属)を含む 金属薄膜からなる磁気記録媒体 【効果】このような構成とした磁気記録媒体は、記録層 の成膜前の到達真空度が低い場合でも、高保磁力を持つ 媒体が得られ、磁気特性の到達真空度依存性の小さい磁 気記録媒体である。




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