Abstract:
In accordance with the present invention, ferromagnetic thin films of iron that have reduced relaxation rates and methods of making the same are provided. It should be noted that pure iron is a ferromagnet (i.e., has a spontaneous magnetization alignment) with the lowest intrinsic damping rate of all of the ferromagnets. The present invention provides a ferromagnetic structure comprising a substrate and a ferromagnetic thin film of iron (Fe) formed on the substrate. An element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), and manganese (Mn) (i.e., a lower-Z transition metal element) is alloyed with the ferromagnetic thin film of iron to reduce the relaxation rate of the ferromagnetic thin film.
Abstract:
A magnetoresistive layered structure having a pair of magnetoresistive, anisotropic ferromagnetic thin-films (F'1, F'2) separated by an intermediate layer (I'1) on a substrate (10, 11) of less than 50 ANGSTROM thickness formed of a substantially nonmagnetic, conductive alloy having two immiscible components therein.
Abstract:
A sputtering process for making a platinum/cobalt (Pt/Co) multilayer film comprised of alternating layers of platinum and cobalt, using as the sputter gas krypton, xenon or a mixture thereof.
Abstract:
L'invention concerne un système (10) de génération de skyrmions comprenant : un canon (12) comportant une région formant paroi (14) réalisée en un premier matériau, la région (14) délimitant un espace extérieur (16) réalisé dans un deuxième matériau distinct du premier matériau et un espace intérieur (18) réalisé dans un troisième matériau distinct du premier matériau, le deuxième matériau et le troisième matériau étant des matériaux magnétiques, et un dispositif de renversement (26) de l'aimantation magnétique propre à renverser l'aimantation magnétique à l'interface entre la région (14) et l'espace intérieur (18).
Abstract:
The invention relates to an electronically commutated electric motor. The electronically commutated electric motor comprises a stator and a rotor, which in particular is designed to be permanently magnetic. The electric motor also comprises a rotor position sensor, wherein the rotor position sensor is designed to detect a predetermined number of, in particular discrete, rotor positions along a rotational direction of the rotor. The rotor position sensor is also designed to generate a sensor signal representing the rotor positions. The electric motor also comprises a control unit connected to the rotor position sensor, wherein the control unit is designed to actuate the stator in order to generate a magnetic rotary field in dependence on the sensor signal. According to the invention, the control unit comprises an input for a steering angle signal, in particular an analog or digital steering angle signal, which represents a steering angle of a vehicle steering system. The control unit is designed to additionally actuate the stator depending on the steering angle signal.
Abstract:
A magnetic logic element with toroidal multiple magnetic films (5, 6, 8, 9). The magnetic logic element comprises a closed toroidal section which is manufactured by etching a unit of multiple magnetic films (5, 6, 8, 9) after they are deposited on a substrate. Optionally the magnetic logic element may also comprise a metal core (10) in the closed toroidal section. Said multiple magnetic films (5, 6, 8, 9) unit is arranged on the input signal lines A, B, C and an output signal line O, and then is made into a closed toroid. Subsequently on the toroidal multiple magnetic films (5, 6, 8, 9) unit there are provided with input signal lines A', B', C' and an output signal line O' which are formed by etching. The magnetic logic element could reduce the demagnetizing field and magnetic anisotropy effectively, and weaken the reversal field of magnetic free layer. Further the magnetic logic element has stable working performance and long operational life.