Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1997-12-23
1999-10-12
Kiliman, Leszek
Stock material or miscellaneous articles
Composite
Of inorganic material
428611, 428694R, 428694T, 428694TS, 428900, 360113, 324252, 338 32R, G11B 566
Patent
active
059652837
ABSTRACT:
The low-field magnetoresistance of a high carrier mobility semiconductor with inhomogeneities which are more conducting than the surrounding semiconductor material matrix is significantly enhanced compared to the magnetoresistance of the homogeneous material. The enhancement results from a magnetic field induced geometric effect in which current is expelled from the conducting inhomogeneity. The enhanced giant magnetoresistance is demonstrated at low field in (near) zero-band-gap material, such as Hg.sub.1-x Cd.sub.x Te(x.about.0.1). The effect is applied to the fabrication of magnetic read head sensors such as Corbino disc, bar magnetoresistance sensors and thin film sensors.
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Solin Stuart A.
Thio Tineke
Feig Philip J.
Kiliman Leszek
NEC Research Institute Inc.
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