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MAGNETIC TUNNEL JUNCTION WITH FREE LAYER HAVING EXCHANGE COUPLED MAGNETIC ELEMENTS

  • US 20120250404A1
  • 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 tunnel junction device, comprising:

  • a magnetic reference layer; and

    a magnetic free layer comprising;

    a first magnetic element;

    a second magnetic element that is magnetically exchange coupled to the first magnetic element, wherein magnetic exchange coupling between the first and second magnetic elements is configured to achieve a switching current distribution less than about 200% and a long term thermal stability criterion of greater than about 60 kBT.

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