Writable magnetic element

US8350347B2 · kind B2 · utility

Assignees

• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• UNIVERSITÉ JOSEPH FOURIER · FR
• Institut Catala de Nanotechnologia (ICN) · ES
• INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANCATS · ES

Inventors

• Gilles Gaudin · Meylan, FR
• Ioan Mihai Miron · Grenoble, FR
• Pietro Gambardella · Sant Cugat del Vallès, ES
• Alain Schuhl · Clamart, FR

Key dates

• Filing date: Oct 6, 2010
• Grant date: Jan 8, 2013
• Expiry date: Jan 6, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10B61/22
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The invention relates to a writable magnetic element comprising a stack of layers presenting a write magnetic layer, wherein the stack has a central layer of at least one magnetic material presenting a direction of magnetization that is perpendicular to the plane of the central layer, said central layer being sandwiched between first and second outer layers of non-magnetic materials, the first outer layer comprising a first non-magnetic material and the second outer layer comprising a second non-magnetic material that is different from the first non-magnetic material, at least the second non-magnetic material being electrically conductive, and wherein it includes a device for causing current to flow through the second outer layer in a current flow direction parallel to the plane of the central layer, and a device for applying a magnetic field along a magnetic field direction that is perpendicular to the plane of the central layer.