Author:
Smith Carl H.,Schneider Robert W.
Abstract
The Giant MagnetoResistance (GMR) effect, discovered in France in 1988, has already been applied in magnetic sensors and has promise in other applications. The rapid acceptance of this technology is due to GMR’s unique characteristics such as high sensitivity, good temperature stability, and excellent linearity over a wide sensing range. In this article GMR materials are described as are their application in magnetic field sensors. New GMR structures utilizing spin valves and spin dependent tunneling (SDT) will offer even more potential for expanding the horizon of solid state magnetic sensing. Comparisons are made to sensors using conventional technology. Integrated GMR sensors that have signal conditioning and output electronics monolithically integrated with the sensor offer further uses of this new technology. Beyond the sensor itself, other control system functions have the potential for using the same GMR materials to make magnetic isolators and nonvolatile memories.
Subject
Electrical and Electronic Engineering,Industrial and Manufacturing Engineering
Reference8 articles.
1. Baibich, M.N., Broto, J.M., Fert, A., Van Dau, F.N., Petroff, F., Eitenne, P., Creuzet, G., Friederich, A. and Chazelas, J. (1988), “Giant magnetoresistance of (001)Fe/(001) Cr magnetic superlattices”, Phys. Rev. Lett., Vol. 61, pp. 2472‐5.
2. Brown, J. (1994), “GMR materials: theory and applications”, Sensors Magazine, Vol. 11, September, pp. 42‐8.
3. Brown, J.L. (1995), “High sensitivity magnetic field sensor using GMR materials with integrated electronics”, Proceedings of the Symposium on Circuits and Systems, January, Seattle, WA.
4. Herman, T.M., Black, W.C. and Hui, S. (1997), “Magnetically coupled linear isolator”, IEEE Trans. Magn., Vol. 33, pp. 4029‐31.
5. Moodera, M. and Kinder, L. (1996), “Ferromagnetic‐insulator‐ferromagnetic tunneling: spin‐dependent tunneling and large magnetoresistance in trilayer junctions”, J. Appl. Phys., Vol. 79 No. 8, pp. 4724‐9.
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献