摘要:
Provided is a magnet including a yoke portion that contains a soft magnetic material, and a magnet portion that is formed on a main surface of the yoke portion and contains a hard magnetic material. An interface of the magnet portion and the yoke portion has an uneven shape.
摘要:
A seed layer stack with a smooth top surface having a peak to peak roughness of 0.5 nm is formed by sputter depositing an amorphous layer on a seed layer such as Mg where the seed layer has a resputtering rate 2 to 30× that of the amorphous layer. The uppermost seed layer is a template layer that is NiCr or NiFeCr. As a result, perpendicular magnetic anisotropy in an overlying magnetic layer that is a reference layer, free layer, or dipole layer is substantially maintained during high temperature processing up to 400° C. and is advantageous for magnetic tunnel junctions in embedded MRAMs, spintronic devices, or in read head sensors. The amorphous seed layer is SiN, TaN, or CoFeM where M is B or another element with a content that makes CoFeM amorphous as deposited. The seed layer stack may include a bottommost Ta or TaN buffer layer.
摘要:
Magnetic setting member for a wristwatch movement, comprising: a balance (1); permanent magnets (2, 10) for bringing said balance into at least one rest position; and an escapement (5, 6) for transmitting pulses to the balance in order to move the balance (1) away from the rest position; at least one of said permanent magnets being formed from a non-sintered crystalline material, for example based on platinum and cobalt.
摘要:
For the present ferromagnetic tunnel junction structure, employed is a means characterized by using an MgO barrier and using a Co 2 FeAl full-Heusler alloy for any of the ferromagnetic layers therein. The ferromagnetic tunnel junction structure is characterized in that Co 2 FeAl includes especially a B2 structure and one of the ferromagnetic layers is formed on a Cr buffer layer. The magnetoresistive element is characterized in that the ferromagnetic tunnel junction structure therein is any of the above-mentioned ferromagnetic tunnel junction structure. Accordingly, a large TMR, especially a TMR over 100% at room temperature can be attained, using Co 2 FeAl having a smallest a though not a half-metal.
摘要:
The present invention provides a magnetic memory element having a memory cell of size 4F 2 which realizes crosspoint-type memory. In a magnetic memory element 100, a first magnetic layer 22, a third magnetic layer (spin polarization enhancement layer) 27, an intermediate layer 21, a fourth magnetic layer (spin polarization enhancement layer) 26, and a second magnetic layer 20 are stacked in order. The intermediate layer 21 is made of an insulating material or a nonmagnetic material. The second magnetic layer 20 comprises a ternary alloy of gadolinium, iron and cobalt, a binary alloy of gadolinium and cobalt, or a binary alloy of terbium and cobalt. Alternatively, the first magnetic layer 22 comprises a ternary alloy of terbium, iron and cobalt, or a binary alloy of terbium and cobalt.
摘要:
Die vorliegende Erfindung betrifft ein metastabiles, nanostabilisiertes Material, aufgebaut aus mehreren Lagen (A,B), beide in kubisch flächenzentrierter Gitterstruktur, wobei die Lage (A) die allgemeine Formel (R,N) und die Lage (B) die allgemeine Formel (R,aÜM)N aufweist, wobei R Refraktäres Element, ausgewählt aus der Gruppe bestehend aus Ti, Ta, Hf, V, Nb, Zr, Cr und Mischungen davon, ÜM Übergangsmetalle, aus gewählt aus der Gruppe bestehend aus Fe, Co und Mischungen davon, N Stickstoff,
a = 1, 2, wobei a für die Anzahl unterschiedlicher ÜM steht, Herstellungsverfahren und Verwendung.
摘要:
A thin film magnetic structure, magnetic devices, and method of producing the same, wherein (110) textured, symmetry broken body centered cubic or body centered cubic derivative crystalline structures epitaxially grown on hexagonal shaped templates, in the presence of a symmetry breaking mechanism is provided to promote oriented uniaxial magnetic properties from a series of successively deposited film layers, result in new oriented magnetic layer structures and microstructures and thus improved magnetic devices and device performance.