Floating magnetic head with reduced magnetostriction vibration noise
    1.
    发明授权
    Floating magnetic head with reduced magnetostriction vibration noise 失效
    具有降低的磁致伸缩振动噪声的浮动磁头

    公开(公告)号:US5576912A

    公开(公告)日:1996-11-19

    申请号:US240813

    申请日:1994-05-11

    摘要: In a floating magnetic head, noises produced at the time of reproduction are reduced, thereby enhancing the precision of detection of a track position. The floating magnetic head uses a monocrystal magnetic material constituting an electromagnetic transducer element, and a crystal orientation of the monocrystal magnetic material in the electromagnetic transducer element is parallel to a direction of travel of a medium. In the case of .vertline..lambda..sub.111 .vertline.+2.times.10.sup.-6 .ltoreq..vertline..lambda..sub.100 .vertline., the crystal orientation is in the range of a solid angle of 3.multidot.sin.theta..multidot.cos.phi. which satisfies 0.ltoreq..theta. and . The monocrystal magnetic material is a monocrystal MnZn ferrite whose chemical composition is represented by 20.ltoreq.MnO.ltoreq.40, 10.ltoreq.ZnO.ltoreq.25 50.ltoreq.Fe.sub.2 O.sub.3 .ltoreq.65 in terms of mol. %.

    摘要翻译: 在浮动磁头中,在再现时产生的噪声减小,从而提高轨道位置的检测精度。 浮动磁头使用构成电磁换能器元件的单晶磁性材料,并且电磁换能器元件中的单晶磁性材料的晶体取向平行于介质的行进方向。 在|的情况下 lambda 111 | + 2x10-6 / = | λ100 | + 2x×10-6,晶体取向在满足0 <θ<10度且0 <= = phi <360度[100]周围的sinθxcos phi的立体角范围内, 其中λ111和λ100分别表示单晶磁性材料沿方向<111>和<100>的线性磁致伸缩常数。 单晶磁性材料是一种单晶MnZn铁氧体,其化学成分以摩尔计,以20摩尔表示为20≤n≤40,10≤Zu≤2550 = Fe 2 O 3 65。 %。