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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >High coercivity CoCrPt-SiO2 granular thin films for magnetic recording
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High coercivity CoCrPt-SiO2 granular thin films for magnetic recording

机译：磁记录用高矫顽力CoCrPt-SiO2颗粒状薄膜

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Granular CoCrPt-SiO2 thin films with Cr underlayers have been fabricated by sputtering followed by post-deposition annealing. Microstructural and magnetic properties of as-deposited and annealed films have been investigated fur potential applications in magnetic recording media. The grain size of about 10 nm was obtained in the as-deposited films, and subsequent annealing did not lead to significant grain growth. High coercivity up to 5640 Oe was achieved upon annealing. The M(r)t value can be down to about 0.4 memu cm(-2) for films with H-c exceeding 5000 Oe. The peak value of the delta M curves changed from a positive value in as-deposited films to a negative value for annealed films, indicating an obvious reduction of intergrain magnetic exchange coupling after annealing. [References: 21]
机译：通过溅射，然后进行后沉积退火，制备了具有Cr底层的粒状CoCrPt-SiO2薄膜。已经研究了沉积和退火膜的微观结构和磁性，并进一步研究了它们在磁记录介质中的潜在应用。在所沉积的膜中获得约10nm的晶粒尺寸，并且随后的退火没有导致明显的晶粒生长。退火后获得高达5640 Oe的高矫顽力。对于H-c超过5000 Oe的薄膜，M（r）t值可低至约0.4 memu cm（-2）。 ΔM曲线的峰值从沉积膜中的正值变为退火膜的负值，表明退火后晶间磁交换耦合明显降低。 [参考：21]

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