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Design and operation of spin valve sensors
Abstract
Two types of patterned, unshielded Giant MagnetoResistance (GMR) spin valve sensors have been fabricated: nano-layered NiFe/Co/Cu/Co/NiFe and simpler NiFe/Cu/Co spin valves. GMR values of 7.6% for /spl Delta/H=10 Oe were measured for the nano-layered structures on coupons. Transfer curves in uniform fields were obtained and were in agreement with theoretical expectations. The sensors were highly linear and well biased. Optimum biasing of the free layer in the spin valve sensor has new features over that in AMR sensors. These were explored in shielded as well as unshielded spin valves using micromagnetic simulation.>
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Cited by
Exchange bias in nanostructures
Nogués, J., Sort, J., Langlais, V., Skumryev, V., Suriñach, S., Muñoz, J. S., & Baró, M. D. (2005) · Physics Reports · doi:10.1016/j.physrep.2005.08.004 · Cited by 1,925
Moriarty, P. (2001) · Reports on Progress in Physics · doi:10.1088/0034-4885/64/3/201 · Cited by 785
Magnetic sensors-A review and recent technologies
Khan, M. A., Sun, J., Li, B., Przybysz, A., & Kosel, J. (2021) · Engineering Research Express · doi:10.1088/2631-8695/ac0838 · Cited by 315
Metadata
- Authors
- Heim, D. E., Fontana, R. E., Tsang, C., Speriosu, V. S., Gurney, B. A., & Williams, M. L.
- Venue
- IEEE Transactions on Magnetics
- Published
- 1994-03
- Volume
- 30
- Issue
- 2
- Pages
- 316-321
- ISSN
- 0018-9464 (ISSN-L)
- OpenAlex
- W2071949161
- Cited by
- 235
- References
- 0
- FWCI
- 21.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Design and operation of spin valve sensors. https://app.cochat.ai/papers/10.1109/20.312279
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- Heim, D. E., Fontana, R. E., Tsang, C., Speriosu, V. S., Gurney, B. A., & Williams, M. L. (1994). Design and operation of spin valve sensors. IEEE Transactions on Magnetics. https://doi.org/10.1109/20.312279
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