Abstract:
발진기및 그동작방법이개시되어있다. 개시된발진기는자유층(free layer), 고정층(pinned layer) 및기준층(reference layer)을포함할수 있다. 상기기준층은상기고정층의자화방향과비평행한자화방향을가질수 있다. 예컨대, 상기기준층은상기고정층의자화방향과수직한자화방향을가질수 있다. 상기고정층및 기준층은수평자기이방성(in-plane magnetic anisotropy)을가질수 있다.
Abstract:
본 발명은 자성층, 자성층의 형성방법, 자성층을 포함하는 정보저장장치 및 정보저장장치의 제조방법에 관한 것이다. 개시된 본 발명의 정보저장장치는 다수의 자구를 갖는 자성트랙, 상기 자성트랙에 연결된 전류 인가수단, 및 읽기/쓰기수단을 포함하되, 상기 자성트랙은 경자성(hard magnetic) 트랙을 포함하고, 상기 경자성트랙은 그의 폭방향과 평행한 자화 용이축(magnetization easy axis)을 갖는 것을 특징으로 한다.
Abstract:
PURPOSE: A graphene electronic device having a multi-layered gate insulating layer is provided to improve electrical characteristics of a grapheme by forming a gate insulating layer of a double layer between a graphene channel layer and a gate electrode. CONSTITUTION: A conductive substrate serves as a gate electrode. A gate insulating layer(120) is arranged on the substrate. A graphene channel layer(130) is formed on the gate insulating layer. A source electrode(141) and a drain electrode(142) are arranged on both ends of the graphene channel layer. The gate insulating layer comprises and inorganic material insulating layer and an organic compound insulating layer on the inorganic material insulating layer.
Abstract:
PURPOSE: A graphene electric element and a manufacturing method are provided to prevent the damage of graphene when eliminating a photosensitive pattern by preventing the photosensitive pattern to be directly touched with a graphene layer. CONSTITUTION: A conductive substrate is used as a gate electrode. A gate oxide(112) is arranged on the substrate. A pair of first metals is separated on the gate oxide. A graphene channel layer(130) is extended between the pair of first metals. The graphene channel layer is composed of graphene of a single layer or a bi-layer. A source electrode(142) and a drain electrode are respectively arranged on both ends of the graphene channel layer. The source electrode and the drain electrode are composed of Au. The thickness of the source electrode and the drain electrode is 10nm to 1000nm.
Abstract:
PURPOSE: An oscillator and an operation method thereof are provided to make high output power using the phenomenon of spin transport torque. CONSTITUTION: A pinned layer(P1) is formed on the first side of a free layer(F1). A base layer(R1) is formed on the second side of the free layer. The base layer can have a magnetization direction which is unparallel to the magnetization direction of the pinned layer. The first separation layer(S1) can be formed between the free layer and the pinned layer. The second parting layer(S2) can be formed between the free layer and the base layer. The magnetization direction of the free layer is changeable. The free layer can be formed of ferromagnetic materials. The ferromagnetic material comprises at least one among Co, Fe, and Ni.
Abstract:
본 발명은 저항 구배를 지닌 다층막을 이용한 메모리 소자에 관한 것이다. 하부 전극; 상기 하부 전극 상에 형성되며, 저항 구배를 지닌 데이타 저장층; 및 상기 데이타 저장층 상에 형성된 상부 전극;을 포함하는 저항 구배를 지닌 다층막을 이용한 메모리 소자를 제공하여, 집적도가 높으며, 고속의 동작 특성을 지니고, 저전력에서 구동 가능한 새로운 형태의 비휘발성 메모리 소자를 제공할 수 있다.
Abstract:
PURPOSE: A spin valve device using grapheme, a manufacturing method there, and a magnetic device including the spin valve device are provided to reduce electrical resistance with a very thin grapheme sheet or h-BN between a pinned layer and a free layer. CONSTITUTION: A spin valve device comprises a lower magnetic layer(LM1), an intermediate layer(60), and an upper magnetic layer(UM1). The lower magnetic layer successively comprises a seed layer(30), a pinning layer(40), and a pinned layer(50). The intermediate layer may be a graphene sheet or an h-BN(hexagonal Boron Nitride) sheet. The magnetization direction of the pinned layer is fixed to a given direction. The magnetization direction of a free layer(70) is freely changed by external magnetism or a spin polarization current.