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Magnetic tape device employing TMR head and magnetic tape with characterized magnetic layer, and head tracking servo method
Magnetic tape device employing TMR head and magnetic tape with characterized magnetic layer, and head tracking servo method
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机译:使用TMR磁头和具有特征磁性层的磁带的磁带装置以及磁头跟踪伺服方法
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摘要
A magnetic tape device includes a TMR head as a servo head; and a magnetic tape which includes a magnetic layer including ferromagnetic hexagonal ferrite powder and a binding agent, and including a servo pattern. The XRD intensity ratio (Int(110)/Int(114)) of the hexagonal ferrite crystal structure obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method is 0.5 to 4.0. The vertical direction squareness ratio of the magnetic tape is 0.65 to 1.00. The center line average surface roughness Ra measured regarding the surface of the magnetic layer is less than or equal to 2.0 nm, and the logarithmic decrement acquired by a pendulum viscoelasticity test performed regarding the surface of the magnetic layer is less than or equal to 0.050.
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