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EP0406060A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Magnetoresistive effect transducer

Assignee: Thales SA
•
Filing: 1990-06-19
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Granted: —
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Expires: 2010-06-19
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Abstract

Abstract Translated from French La présente invention concerne un capteur à effet magnétorésistif. Dans ce capteur, l'élément sensible est constitué par une multicouche métallique magnétique monocristalline (2) formée d'un empilement de couches (20) en un matériau magnétique séparées par des couches (21) en un matériau non-magnétique, la multicouche étant réalisée de telle sorte que les couches en matériau magnétique présentent un couplage de type anti-ferromagnétique et que la transition entre l'état d'arrangement anti-parallèle et l'état d'arrangement parallèle se réalise sur un intervalle de champ magnétique très faible. Application à l'enregistrement magnétique. The present invention relates to a magnetoresistive effect sensor. In this sensor, the sensitive element is constituted by a monocrystalline magnetic metallic multilayer (2) formed by a stack of layers (20) made of a magnetic material separated by layers (21) made of a non-magnetic material, the multilayer being produced in such a way that the layers of magnetic material exhibit an anti-ferromagnetic type coupling and that the transition between the state of anti-parallel arrangement and the state of parallel arrangement takes place over a very small magnetic field interval . Application to magnetic recording.

Inventors

  • 👤 Alain Friederich
  • 👤 Gérard Creuzet

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 19:32
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/06; G01R33/09; G01R33/093; B; B82; B82Y; B82Y25/00; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/39; G11B5/3903; H; H10; H10N; H10N50/00; H10N50/80; H10N50/85; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/928; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12632

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US4103315A Cited
EP0288766A2 Cited
EP0314343B1 Cited

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