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Magnetic Properties of Co-P and Co-P-Cr Thin Films for Longitudinal Magnetic Recording
장평우(Pyung Woo Jang),손홍균(Hong Kyun Sohn),이택동(Taek Dong Lee) 한국자기학회 1994 韓國磁氣學會誌 Vol.4 No.2
In order to develop new magnetic media with higher coercivity, we have investigated the magnetic properties of Co-P/Cr and Co-P-Cr/Cr films. The coercivity of Co-P binary films deposited at RT was around 835 Oe in the range of 9-12 at. % P. In the Co-P binary system coercivity decreased with increasing substrate temperature for P contents of 9-12 at.%, which may be due to the decomposition of Co-P single phase to Co and Co₂P phase. However, the coercivity of the films containing more than 12 at. % P is very low due to the formation of amorphous phase. The coercivity of Co-P-Cr ternary films increased with increasing Cr contents and reached the maximum value of 1020 Oe in the water cooled C0_(84)P_(10)Cr_6 film.