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    • 2. 发明专利
    • Magnetoresistance effect element and magnetic device
    • 磁阻效应元件和磁性器件
    • JP2012190914A
    • 2012-10-04
    • JP2011051678
    • 2011-03-09
    • Tohoku Univ国立大学法人東北大学
    • OKANE MIKIHIKOSATO JONAGANUMA HIROSHIANDO YASUO
    • H01L43/10G11B5/39H01L43/08
    • G11B5/3906G11B2005/3996
    • PROBLEM TO BE SOLVED: To provide a magnetoresistance effect element exhibiting a high MR ratio of 50% or more at room temperature and capable of achieving a recording density of several Tbit/inch, and to provide a magnetic device.SOLUTION: The magnetoresistance effect element has a first half metal ferromagnetic layer 13 and a second half metal ferromagnetic layer 15 composed of a CoFeMnSi Heusler alloy (x=0.0 to 1.0) and having a thickness of 2-20 nm, and a nonmagnetic metal layer 14 composed of Ag sandwiched therebetween. The magnetoresistance effect element has an underlying layer 12 composed of a Cr/Ag layer under the first half metal ferromagnetic layer 13, and has an antioxidation layer 16 composed of an Ag/Ru layer on the second half metal ferromagnetic layer 15.
    • 要解决的问题:为了提供在室温下具有50%以上的高MR比的磁阻效应元件,并且能够实现几个Tbit / inch的记录密度 2 < SP>,并提供磁性装置。 解决方案:磁阻效应元件具有由Co 2 Fe x Si-Heusler合金(x = 0.0〜1.0),厚度为2-20nm,非磁性金属层14由 Ag夹在中间。 磁阻效应元件具有由第一半金属铁磁层13下的Cr / Ag层构成的下层12,并且在第二半金属铁磁层15上具有由Ag / Ru层构成的抗氧化层16。 版权所有(C)2013,JPO&INPIT