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:
Aug. 06, 2019
Filed:
Mar. 31, 2015
Franck Natali, Wellington, NZ;
Benjamin John Ruck, Lower Hutt, NZ;
Harry Joseph Trodahl, Upper Moutere, NZ;
Eva-maria Johanna Anton, Wellington, NZ;
James Francis Mcnulty, Wellington, NZ;
Simon Edward Granville, Wellington, NZ;
Franck Natali, Wellington, NZ;
Benjamin John Ruck, Lower Hutt, NZ;
Harry Joseph Trodahl, Upper Moutere, NZ;
Eva-maria Johanna Anton, Wellington, NZ;
James Francis McNulty, Wellington, NZ;
Simon Edward Granville, Wellington, NZ;
Other;
Abstract
Disclosed herein are magnetic materials comprising rare earth nitrides and, more particularly, magnetic materials comprising multilayer-structured materials comprising one relatively soft and one relatively hard magnetic layer. The magnetic materials comprise a first ferromagnetic layer, a second ferromagnetic layer, and a blocking layer between and in contact with each of the first 5 and second ferromagnetic layers. The first and second ferromagnetic layers have different coercive fields. The first ferromagnetic layer comprises a first rare earth nitride material and the second ferromagnetic layer comprises a second rare earth nitride material. Also disclosed are methods for preparing the materials. The materials are useful in the fabrication of devices, such as GMR magnetic field sensors, MRAM devices, TMR magnetic field sensors, and magnetic 10 tunnel junctions.