MAGNETIC ELEMENT, AND MAGNETIC HIGH FREQUENCY ELEMENT HAVING THE MAGNETIC ELEMENT
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Feb 24, 2015
filing date -
Feb 28, 2014
priority date (Note) -
Abandoned
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Abstract
A higher oscillation output is realized in a magnetic element utilizing high frequency characteristics of a magnetoresistive effect element. A magnetic element 1 includes a magnetoresistive effect film 10 including a magnetic pinned layer 14 and a magnetic free layer 12 with a non-magnetic spacer layer 13 interposed therebetween, and a pair of electrodes (lower electrode layer 11 and upper electrode layer 15) arranged with the magnetoresistive effect film 10 interposed therebetween in a stacking direction of the magnetoresistive effect film 10, wherein, given that a minimum value of an area of the magnetic free layer 12 in a section perpendicular to the stacking direction is denoted by Sf, and that a minimum value of an area of the magnetic pinned layer 14 in a section perpendicular to the stacking direction is denoted by Spm, relation of Sf>Spm is satisfied.
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