Taper effect in spin valve devices

In this paper the taper effect is discussed in various shielded spin valve structures using the micro-magnetic modeling. It is found that long taper can result in the instability of sensor performance. In addition, it is harder to control the instability if sensors have more than three magnetic laye...

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Veröffentlicht in:	IEEE transactions on magnetics 2000-09, Vol.36 (5), p.2575-2577
Hauptverfasser:	Zhu, N., Hiner, C., Rana, A., Huai, Y., Seagle, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Demagnetization Demagnetizing Devices Electronics Equations Exact sciences and technology Geometry Instability Magnetic devices Magnetic fields Magnetic heads Magnetic sensors Magnetic separation Magnetic shielding Magnetic thin film devices: magnetic heads (magnetoresistive, inductive, etc.) domain-motion devices, etc Magnetism Magnetization Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Sensors Spin valves Stability
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Zusammenfassung:	In this paper the taper effect is discussed in various shielded spin valve structures using the micro-magnetic modeling. It is found that long taper can result in the instability of sensor performance. In addition, it is harder to control the instability if sensors have more than three magnetic layers because the demagnetizing fields become more complicated at sensor edges with increasing magnetic layer number.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/20.908515