Abstract:
The present invention is notably directed to a spin-orbit coupled device. This device comprises a confinement part. It further includes a circuitry, having an input device, energizable to inject spin-polarizations to charge carriers in an input region of the confinement part. The circuitry further comprises an output device, usable to detect spin- polarizations of charge carriers in an output region of the confinement part. The confinement part may be is configured to subject charge carriers drifting therein to a non¬ linear spin-orbit interaction, which causes to rotate a spin polarization of the drifting charge carriers by an angle that depends non-linearly on momenta of such charge carriers. The circuitry may be configured to allow momenta of charge carriers drifting in the confinement part to be varied, while injecting spin-polarizations in the input region. Varying momenta allows spin-polarizations of drifting charge carriers to be rotated, owing to said non-linear spin-orbit interaction.
Abstract:
A one-transistor (1T), one-selector (1S), one magnetic tunnel junction (1MTJ), spin torque transfer (STT), spin Hall effect (SHE), magnetic random access memory (MRAM) may be configured to provide separate write current and read current paths. In such a configuration, the write current may pass through a SHE electrode disposed proximate the MTJ device. The direction of write current flow through the SHE electrode determines spin polarization of the write current, the magnetic field orientation of a free magnetic layer in the MTJ device, and consequently the resistance of the MTJ device. The write current can be at a level sufficient to cause the reliable storage of binary information in the MTJ device. The read current, at a lower level than the write current, passes through the MTJ.
Abstract:
Described is an apparatus which comprises: a first transistor; a second transistor having a first terminal coupled to a first terminal of the first transistor; a first conductor coupled to a second terminal of the second transistor; a magnetoelectric (ME) layer coupled to the first conductor; and a ferromagnetic (FM) layer coupled to the ME layer and to a second terminal of the first transistor.
Abstract:
Aspects described herein are related to spintronic logic gates employing a Giant Spin Hall Effect (GSHE) magnetic tunnel junction (MTJ) element(s) for performing logical operations. In one aspect, a spintronic logic gate is disclosed that includes a charge current generation circuit and a GSHE MTJ element. The charge current generation circuit is configured to generate a charge current representing an input bit set. The input bit set may include one or more input bit states for a logical operation. The GSHE MTJ element is configured to set a logical output bit state for the logical operation, and has a threshold current level. The GSHE MTJ element is configured to generate a GSHE spin current in response to the charge current and perform the logical operation on the input bit set by setting the logical output bit state based on whether the GSHE spin current exceeds the threshold current level.
Abstract:
본 발명은 수직 자기이방성을 갖는 자유 자성층에 인접한 도선에 면내 전류를 인가하여 자유 자성층의 자화 반전을 유도하고, 이와 동시에 자기터널접합 셀마다 선택적으로 전압을 인가하여 특정 셀마다 선택적으로 자유 자성층의 자화를 반전시킬 수 있는 자기 메모리 소자에 관한 것으로서, 본 발명에 따른 자기 메모리 소자는 자화반전을 일으키는 스핀 홀 스핀토크가 도선과 자유 자성층의 계면에서 일어나기 때문에 부피를 줄여 소자의 고집적화를 구현할 수 있고, 자성층의 수직 자기이방성을 높여 열적 안정성을 확보함과 동시에 스핀전류의 양을 증가시켜 임계전류밀도를 감소시키는 것이 가능하다. 또한, 두꺼운 절연체로 터널자기저항을 높여 메모리의 읽는 속도를 증가시키면서도 임계전류밀도에 영향을 미치지 않는 메모리 소자이다.
Abstract:
The present invention relates to an information processing apparatus and to a manufacturing method thereof, and more particularly, to a magnetic information processing apparatus and to a manufacturing method thereof. The magnetic information processing apparatus according to the present invention comprises a substrate, and a magnetic layer which is formed on the substrate, and which contains a magnet having multi-axis magnetic anisotropic properties, wherein said magnet includes a crystal structure. The crystal surface of the magnet and the surface of the magnetic layer do not correspond with each other.
Abstract:
Disclosed herein is an apparatus for sensing characteristics of an object. In a preferred embodiment, the apparatus comprises an array, wherein the array comprises a plurality of nanoscale hybrid semiconductor/metal devices which are in proximity to an object, each hybrid semiconductor/metal device being configured to produce a voltage in response to a perturbation, wherein the produced voltage is indicative of a characteristic of the object. Any of a variety of nanoscale EXX sensors can be selected as the hybrid semiconductor/ metal devices in the array. With such an array, ultra high resolution images of nanoscopic resolution can be generated of objects such as living cells, wherein the images are indicative of a variety of cell biologic processes.
Abstract:
A tunable magnetic switch for use in a magnetic memory device, including a magnetic source to provide a magnetic bias field, a magnetic component located in the bias field, and a coil coaxially disposed around the magnetic component to set a magnetization level in the magnetic component in accordance with a magnetic recoil effect.