a substrate; and a cobalt-containing maghemite film which is provided on said substrate, which contains cobalt at a molar ratio of cobalt to iron of not more than 0.06:1, which has a spacing of a (311) plane of not more than 0.2510 nm (2.510Å), a spacing of a (222) plane of not more than 0.2415 nm (2.415Å) or a spacing of a (220) plane of not more than 0.2950 nm (2.950Å), and which has a coercive force of not less than 143 kA/m (1,800 Oe).
摘要翻译:一种磁记录介质,包括:衬底; 以及设置在所述基板上的含钴磁赤铁矿膜,所述含钴磁赤铁矿膜以钴和铁的摩尔比为0.06:1以下的方式含有钴,其(311)面的间隔不大于0.2510nm( (222)面的间隔不大于0.2415nm(2.415)或(220)面的间距不大于0.2950nm(2.950),并且其矫顽力不是 小于143 kA / m(1,800 Oe)。
摘要:
A magnetic recording medium suitably applicable to existent magnetic recording systems using a ring-type magnetic head and capable of using a plastic substrate for providing a magnetic recording medium for high-density recording, which magnetic recording medium has a coercive force of not less than 159 kA/m (2,000 Oe) and comprises: (a) a plastic substrate; and (b) a cobalt-containing maghemite film on the substrate; wherein the film has: a molar ratio of cobalt to iron of not more than 0.06:1; and a spacing of a plane (311) of not more than 0.2510 nm (2.510Å), a spacing of a plane (222) of not more than 0.2415 nm (2.415Å) or a spacing of a plane (220) of not more than 0.2950 nm (2.950Å).
摘要翻译:一种磁记录介质,适用于使用环形磁头的现有磁记录系统,并且能够使用塑料基片来提供用于高密度记录的磁记录介质,该磁记录介质具有不小于159的矫顽力 kA / m(2000 Oe)并且包括:(a)塑料基材; 和(b)在基底上的含钴磁赤铁矿膜; 其中所述膜具有:钴与铁的摩尔比不大于0.06:1; 并且平面(311)的间距不大于0.2510nm(2.510),平面(222)的间距不大于0.2415nm(2.415),或者平面(220)的间隔不大于 超过0.2950nm(2.950)。
a substrate; a nickel oxide underlayer on said substrate; and a cobalt-containing maghemite film which is provided on said nickel oxide underlayer, which has a spacing of a (311) plane of not more than 0.2510 nm (2.510Å), a spacing of a (222) plane of not more than 0.2415 nm (2.415Å) or a spacing of a (220) plane of not more than 0.2950 nm (2.950Å), and in which the ratio of the X-ray diffraction spectrum peak intensity of the (311), (222) or (220) plane of the said film to the X-ray diffraction spectrum peak intensity of the (400) plane is more than 0.5:1.
摘要:
A magnetic recording medium suitably applicable to existent magnetic recording systems using a ring-type magnetic head and capable of using a plastic substrate for providing a magnetic recording medium for high-density recording,which magnetic recording medium comprises:
(a) a plastic substrate; (b) a nickel oxide layer on the substrate; and (c) a cobalt-containing maghemite film on the nickel oxide layer, which film has a molar ratio of cobalt to iron of from 0.01:1 to 0.1:1, a spacing of a plane (311) of not more than 0.2510 nm (2.510 Å), a spacing of a plane (222)of not more than 0.2415 nm (2.415 Å), or a spacing of a plane (220) of not more than 0.2950 nm (2.950 Å), and a ratio of more than 0.5:1 in respect of the X-ray diffraction pattern peak intensity of either of the planes (311), (222) and (220) of said film to the X-ray diffraction pattern peak intensity of a plane (400).
摘要:
A magnetic recording medium suitably applicable to existent magnetic recording systems using a ring-type magnetic head and capable of using a plastic substrate for providing a magnetic recording medium for high-density recording, which magnetic recording medium has a coercive force of not less than 159 kA/m (2,000 Oe) and comprises:
(a) a plastic substrate; and (b) a cobalt-containing maghemite film on the substrate; wherein the film has:
a molar ratio of cobalt to iron of not more than 0.06:1; and a spacing of a plane (311) of not more than 0.2510 nm (2.510Å), a spacing of a plane (222) of not more than 0.2415 nm (2.415Å) or a spacing of a plane (220) of not more than 0.2950 nm (2.950Å).