The Effect of External Magnetic Field on the Electromagnetic Shielding Performance of Nanometer Nickel Film
Abstract: Nickel nanometer thin films were deposited by magnetron sputtering on flexible substrates, the impact of morphology of the film sample of magnetic field, under magnetic and no magnetic of film were investigated by X-ray diffraction. A comparison of their saturation magnetization and coercive force as well as in the electromagnetic spec-trum for 3.95 - 5.85 GHz electromagnetic shielding effect. The result show that, the film of crystallinity was deposited under magnetic field is better than this no magnetic, the coercivity of the film was prepared under magnetic field is 112.89 Oe, while be prepared under no magnetic field is 14.82 Oe; the film be prepared under an external magnetic field is as 7.6 times no magnetic. The shielding effect of film sample under magnetic field is obviously better than that of no magnetic field, the average increase of shielding effectiveness is 30%.
文章引用: 徐军军 , 张海燕 , 曾国勋 , 杨振大 (2013) 外加磁场对纳米镍膜电磁屏蔽性能的影响。 现代物理， 3， 38-42. doi: 10.12677/MP.2013.31007
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