Magnetoresistor using a superlattice of GaAs and AlGaAs

Details Magnetoresistor using a superlattice of GaAs and AlGaAs Magnetoresistor using a superlattice of GaAs and AlGaAs

1991-11-21

1993-02-23

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

338 32R, 257661, G01R 3306

Patent

active

051893673

ABSTRACT:
A superlattice comprising alternating layers of undoped GaAs and silicon doped Al.sub.0.3 Ga.sub.0.7 As is used as a magnetoresistor for measuring magnet fields in excess of one Tesla. The magnetic field to be measured is passed vertically through the superlattice and current from a source of constant current is flowed vertically through the resulting superlattice and the voltage drop across the superlattice is measured to provide an indication of the strength of the magnetic field.

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