×

Magnetoresistive effect element, magnetic head, and magnetic disk apparatus

  • US 8,917,485 B2
  • Filed: 10/13/2006
  • Issued: 12/23/2014
  • Est. Priority Date: 03/27/2006
  • Status: Expired due to Fees
First Claim
Patent Images

1. A magnetoresistive effect element, comprising:

  • a magnetization fixed layer including a plurality of first crystal grains, having a magnetization direction which is fixed substantially in one direction;

    a magnetization free layer including a plurality of second crystal grains, having a magnetization direction which is changeable; and

    a spacer layer, between the magnetization fixed layer the magnetization free layer, including an insulating layer and a plurality of metal conductors penetrating the insulating layer,grain diameters of the second crystal grains being smaller than grain diameters of the first crystal grains,the metal conductors having diameters smaller than the grain diameters of both the first and second crystal grains, andeach metal conductor being arranged in correspondence with a center portion of a corresponding one of the first crystal grains and a center portion of a corresponding one of the second crystal grains.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×