The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Aug. 24, 2021
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Ricardo Sousa, Grenoble, FR;
Ioan-Lucian Prejbeanu, Grenoble, FR;
Abstract
A method for measuring the intensity of an external magnetic field by using a magnetic memory point including a storage layer having a magnetisation switchable between two magnetisation directions substantially perpendicular to the plane of the layer; a reference layer having a fixed magnetisation perpendicular to the plane of the layer; and a tunnel barrier layer separating the storage layer and the reference layer; the method including successively applying a plurality of currents or voltages of different amplitudes to the memory point until switching of the magnetisation direction of the storage layer takes place to determine a minimum switching current value of the magnetisation direction of the storage layer or a minimum switching voltage value of the magnetisation direction of the storage layer, and determining the intensity of the external magnetic field to be measured from the minimum switching current value or the minimum switching voltage value.