Abstract:
A magnetic tunneling junction non-volatile register with feedback for robust read and write operations. In an embodiment, two MTJ devices (124; 126) are configured to store a logical 0 or a logical 1, and are coupled to drive an output node (132) to a voltage indicative of the stored logical 0 or a logical 1. The output of a D flipflop (104) is fed to the two MTJ devices so that the state of the D flip-flop may be stored in the two MTJ devices during a store operation. During a read operation, the D flip-flop outputs the state of the two MTJ devices. Read disturbances are mitigated with the use of an edge detector (134) coupled to the output node, so that a LOW voltage is provided to the D flip-flop if a rising voltage at the output node is detected.
Abstract:
An apparatus and method for bending magnetic flux (18) in a magnetic circuit are disclosed. A means for conducting a substantially planar electric current is placed in the path of the flux of a magnetic circuit. Current is then caused to flow in the conducting means, causing the magnetic flux in the magnetic circuit to deviate from its original path. A preferred embodiment of the invention is described wherein a series of coils are used from both the planar conducting means and a partial flux conduit for coupling the flux bending apparatus to the magnetic circuit. Specific applications for the invention are disclosed in relation to magnets for use in magnetic resonance imaging applications, and magnets for use in dual dipole particle accelerator applications. Additional applications of the invention are described in relation to creating modular components for magnetic flux piping systems.
Abstract:
The present invention is in the field of a magneto optical device comprising a magnetic unit and an optical unit, an electronic device comprising the magneto-optic device, a method of energy saving using the magneto- optical device, an array comprising the magneto-optical devices, and a method of changing magnetic orientation.
Abstract:
An apparatus includes a circuit and a field line. The circuit includes a magnetic tunnel junction including a storage layer and a sense layer. The field line is configured to generate a magnetic field based on an input signal, where the magnetic tunnel junction is configured such that a magnetization direction of the sense layer and a resistance of the magnetic tunnel junction vary based on the magnetic field. The circuit is configured to amplify the input signal to generate an output signal that varies in response to the resistance of the magnetic tunnel junction.
Abstract:
A magnetic memory system includes a superconductor circuit and one or more magnetic memory elements to store data. To write data, a driver circuit in the superconductor circuit generates a magnetic signal for transmission over a superconductor link extending between the superconductor circuit and the magnetic memory element. To read data, a sensing circuit in the superconductor circuit monitors a superconductor link extending from sensing circuit to the magnetic memory element. The magnetic memory element can be a spin-transfer type magnetic memory element.
Abstract:
Some embodiments include memory cells including a memory component having a first conductive material, a second conductive material, and an oxide material between the first conductive material and the second conductive material. A resistance of the memory component is configurable via a current conducted from the first conductive material through the oxide material to the second conductive material. Other embodiments include a diode comprising metal and a dielectric material and a memory component connected in series with the diode. The memory component includes a magnetoresistive material and has a resistance that is changeable via a current conducted through the diode and the magnetoresistive material.