Abstract: A spintronics device is a spintronics device that generates a spin current, the device including: a metal layer; a semiconductor layer having a lower carrier mobility or a lower electrical conductivity than the metal layer; and a gradient layer located at a boundary between the metal layer and the semiconductor layer, and having a gradient in the carrier mobility or the electrical conductivity.

Abstract: Provided are a spintronics device, a magnetic memory, and an electronics device capable of generating a large spin current without depending on a specific material. A spintronics device includes a first conductive layer, a second conductive layer having carrier mobility or electrical conductivity lower than that of the first conductive layer, and a boundary region between the conductive layers. The boundary region has a gradient of carrier mobility or electrical conductivity, and a spin current is generated by rotation of a velocity field of an electron caused by the gradient.

Abstract: Provided are a spintronics device, a magnetic memory, and an electronics device capable of generating a large spin current without depending on a specific material. A spintronics device includes a first conductive layer, a second conductive layer having carrier mobility or electrical conductivity lower than that of the first conductive layer, and a boundary region between the conductive layers. The boundary region has a gradient of carrier mobility or electrical conductivity, and a spin current is generated by rotation of a velocity field of an electron caused by the gradient.

Abstract: A generation of rust or electric corrosion between a rivet and a member is prevented by enhancing a degree of sealing between the rivet and the member. A first enlarged-diameter portion 16 and a second enlarged-diameter portion 20 are provided between a head part 12 and a leg part 14 of a rivet 10. A space portion 32 is formed among an upper layer workpiece 24, the first enlarged-diameter portion 16 and the second enlarged-diameter portion 20 in a state where the rivet 10 is driven into the upper layer workpiece 24 and a lower layer workpiece 26. Because of the existence of the space portion 32, the contact between the upper layer workpiece 24 and the first enlarged-diameter portion 16, and between the upper layer workpiece 24 and the second enlarged-diameter portion 20 can be secured. Therefore, the degree of sealing between the rivet 10 and the upper layer workpiece 24 is improved.

Abstract: A flow adjusting mechanism comprises a path, which connects a fuel tank and a gas discharging nozzle to each other, and a filter, which is located in the path. The filter has been obtained with a process, wherein an artificial leather layer, which has an open-cell microporous structure, and a micro-cellular polymer layer are laminated together, and the resulting laminate, which is composed of the artificial leather layer and the micro-cellular polymer layer, is hot-pressed such that a thickness of the laminate is reduced by 23% to 55% of an original total layer thickness of the laminate. The flow adjusting mechanism exhibits little change of a flame length with the passage of time and has a long service life.

Abstract: In order to safely transport a building material to its mounting area of a building body and to temporarily hold the same until it is firmly mounted on the mounting area on the building site, according to the present invention, there is provided, an apparatus for transporting/mounting a building material including a self-propelled vehicle body provided with a steering/driving device, the vehicle body assuming a substantially L-shaped form constructed of an upright main body and a pair of lower frames which are parallelly spaced apart from each other and horizontally extend from opposite sides of a lower portion of the main body; an elevator unit movably mounted on a vertical side portion of the main body so as to be vertically movable along the vertical side portion of the main body; a first frame horizontally extending forward from a vertical side of the elevator unit, the first frame having its base end mounted on the elevator unit so as to be horizontally movable in a horizontal plane; a second frame slida