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本文推荐一种镀液,用于制作电磁型微电机转子坡莫合金导磁层,研究了该镀液的组成和工作条件对镀层成份和内应力的影响,表明该镀液具有可供选用的电流密度范围宽,允许较高Fe2-浓度和镀层内应力低等优点。 相似文献
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Dwarakanath N. Geerpuram Anand S. Mani Vidhya Shankar Baskaran 《Journal of Electronic Materials》2004,33(11):1269-1273
The behavior of narrow permalloy square rings under the influence of a magnetic field was studied using magnetic force microscopy
(MFM). Two stable states of opposite polarity at remanence and simple switching were observed. We propose a design for the
hard layer of magnetic random access memory (MRAM) that uses these states in square rings for data storage. 相似文献
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The isochronal and isothermal annealing behavior of electroplated Ni-Fe thin films in the temperature range 373°–773°K has
been investigated through measurements of electrical resistivity, coercivity, and relative permeability. Analysis of the experimental
data indicates that the resistivity decrease is characterized by an activation energy of about 0.70 eV for temperatures up
to 550 ° K, and by an activation energy of about 1.82 eV above this temperature. The coercivity initially decreases with an
activation energy of about 0.71 eV, and then increases with activation energies up to 1.81 eV. The relative permeability decreases
with an activation energy of 1.01 eV. The significance of these activation energies is discussed in terms of structural changes,
and the results are compared with the annealing behavior of vapor deposited Ni-Fe thin films. 相似文献
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以NiFeNb为种子层,制备(Ni79Fe21)1-xNbx(5nm)/(Ni79Fe21) (20nm)/Ta(3nm)系列膜,并对其颗粒大小、 磁滞回线及表面粗糙度等进行测量,探讨种子层中Nb含量x对坡莫合金磁滞回线的影响.结果 表明,以NiFeNb作种子层能更好地改善坡莫合金的微结构. Nb含量为23%时的磁滞回线有最 小的最大磁能积、矫顽力.种子层影响坡莫合金磁滞回线的一个重要原因是脱附激活能等因 素造成种子层具有不同的表面粗糙度,进而使坡莫合金具有不同的微结构和磁性能.
关键词:
NiFeNb种子层
坡莫合金
磁滞回线
粗糙度 相似文献
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