Magnetic device and magnetic sensor using the same

Details Magnetic device and magnetic sensor using the same Magnetic device and magnetic sensor using the same

1998-02-13

1999-10-26

Crane, Sara

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

360113, 324252, 257421, H01L 2906

Patent

active

059733349

ABSTRACT:
A magnetic sensor has a three-terminal magnetic device consisting of an emitter, a base, and a collector. A semiconductor layer serving as the collector and a magnetic multilayered film serving as the base form a Schottky junction. The magnetic multilayered film has two magnetic films opposing each other with a nonmagnetic film between them. The emitter constructed of a metal film and the base are connected via a tunnel insulating film. The relationship between the magnetization directions in the magnetic films changes in accordance with an external magnetic field, and this changes the value of a current flowing through the magnetic device. The external magnetic field is sensed on the basis of this change in the current value.

REFERENCES:
patent: 3972035 (1976-07-01), Holtzberg et al.
patent: 4823177 (1989-04-01), Prinz et al.
patent: 5416353 (1995-05-01), Kamiguchi et al.
patent: 5636093 (1997-06-01), Gijs et al.
patent: 5640343 (1997-06-01), Gallaghar et al.
patent: 5856681 (1999-01-01), Ohshima
D.J. Monsma, et al., "Perpendicular Hot Electron Spin-Valve Effect in a New Magnetic Field Sensor: The Spin-Valve Transistor", Physical Review Letters, vol. 74, No. 26, Jun. 26, 1995, pp. 5260-5263.

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