SCISSOR TYPE MAGNETIC SENSOR WITH HIGH MAGNETIC MOMENT BIAS STRUCTURE FOR REDUCED SIGNAL ASYMMETRY

A scissor type magnetic sensor having a magnetic bias structure extending from the back edge of first and second magnetic free layers. The magnetic bias structure is constructed of a magnetic material having a high magnetic moment, such as NiFe with a high Fe content or CoFe. The high magnetic momen...

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Bibliographische Detailangaben
Hauptverfasser:	SONG SUPING, HO KUOK S
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	A scissor type magnetic sensor having a magnetic bias structure extending from the back edge of first and second magnetic free layers. The magnetic bias structure is constructed of a magnetic material having a high magnetic moment, such as NiFe with a high Fe content or CoFe. The high magnetic moment bias structure reduces magnetic signal asymmetry while also maintaining high signal amplitude.