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EXCHANGE COUPLED MAGNETIC ELEMENTS

  • US 20120251845A1
  • Filed: 03/31/2011
  • Published: 10/04/2012
  • Est. Priority Date: 03/31/2011
  • Status: Active Grant
First Claim
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1. A magnetic storage article, comprising:

  • first magnetic elements having anisotropy, Hk1, volume, V1; and

    second magnetic elements magnetically exchange coupled to the first magnetic elements, the second magnetic elements having anisotropy Hk2, and volume V2, wherein a thermal stability of the exchange coupled magnetic elements is greater than about 60 kBT at a storage temperature of about 300 K and a magnetic switching field distribution, SFD, of the exchange coupled magnetic elements is less than about 200% at a predetermined magnetic switching field and a predetermined assisting switching energy.

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