Abstract: Disclosed herein is a process for producing a narrow titanium-containing wire, comprising steps of: (i) providing a structure comprising a substrate having a titanium-containing surface and a porous layer containing narrow pores extending towards the surface; and (ii) forming narrow titanium-containing wires in the respective narrow pores by heat treatment of the structure obtained in the step (i).

Abstract: The present invention provides a nano-structure which can be applied to various high-function devices. The nano-structure includes an anodically oxidized layer having a plurality of kinds of pores.

Abstract: A method of producing a structure having narrow pores includes a first step of bringing pore-guiding members into contact with upper and lower surfaces of a member comprising aluminum as a principal ingredient and a second step of anodizing the member comprising aluminum as the principal ingredient to form narrow pores. The pore-guiding members contain the same material as a principal ingredient. The second step includes preferably a step of transforming the member comprising aluminum as the principal ingredient into a porous body comprising alumina having narrow pores oriented substantially parallel to the interfaces between the pore-guiding members and the member comprising aluminum as the principal ingredient.

Abstract: Disclosed herein is a process for producing a narrow titanium-containing wire, comprising steps of:

Abstract: The present invention provides a nano-structure which can be applied to various high-function devices. The nano-structure includes an anodically oxidized layer having a plurality of kinds of pores.

Abstract: A method of producing a structure having narrow pores includes a first step of bringing pore-guiding members into contact with upper and lower surfaces of a member comprising aluminum as a principal ingredient and a second step of anodizing the member comprising aluminum as the principal ingredient to form narrow pores. The pore-guiding members contain the same material as a principal ingredient. The second step includes preferably a step of transforming the member comprising aluminum as the principal ingredient into a porous body comprising alumina having narrow pores oriented substantially parallel to the interfaces between the pore-guiding members and the member comprising aluminum as the principal ingredient.

Abstract: A process for producing a zinc oxide acicular structure by growing an acicular zinc oxide on a substrate, the process comprising the steps of holding the substrate in an electrolytic solution in which at least zinc ions are present, and forming zinc oxide on the substrate by electrodeposition. The electrolytic solution contains at least one cosolute. Also disclosed is a photoelectric conversion device comprising a charge transport layer having the zinc oxide acicular structure.

Abstract: Provided are electron-emitting devices improved in durability during concentration of an electric field and thus rarely suffering chain discharge breakdown. An electron-emitting device has an electroconductive film, a layer placed on the electroconductive film and containing aluminum oxide as a main component, a pore placed in the layer containing aluminum oxide as a main component, and an electron emitter placed in the pore and containing a material of the electroconductive film, and the electron emitter is porous and is electrically connected to the electroconductive film.

Abstract: The present invention provides a nano-structure which can be applied to various high-function devices. The nano-structure includes an anodically oxidized layer having a plurality of kinds of pores.

Abstract: To provide a plate of high resolution and large area. The channel plate configured by including a substrate, a first electrode placed on the top face of the substrate, and a second electrode placed on the bottom face of the substrate, wherein the substrate is a porous element having a plurality of pores extending therethrough, and the porous element is formed by a compound including aluminum, and the porous element has an electron multiplier on a wall surface of the pore.

Abstract: To provide a magnetic recording medium with good record and reproduction characteristics. In the magnetic recording medium having an anodic oxidized alumina nanohole film filled with a magnetic substance, the anodic oxidized alumina nanohole film 13 is formed on a substrate 16 with at least one base electrode layer 15 sandwiched therebetween, the base electrode layer 15 is a film that has fcc structure and whose (111) face is oriented in the direction perpendicularly to a substrate, and the fillers 14 in the alumina nanoholes 10 have hcp structure and include hard magnetic substance whose principal component is Co and whose c-axis is perpendicular to the substrate.

Abstract: A magnetic device which has a layer having pores on a substrate and is to be used by applying electric current in the direction of depth of the pores comprises: a laminated structure in which a first ferromagnetic layer, a second ferromagnetic layer having a smaller coercive force than the first ferromagnetic layer and a non-magnetic layer are laminated within a part or all of the pores, wherein a hard layer having the first ferromagnetic layer, and a free ferromagnetic layer including the second ferromagnetic layer are laminated through the non-magnetic layer, and the hard layer further has a laminated structure in which a plurality of first ferromagnetic layers form antiferromagnetic coupling through the non-magnetic layer. A solid-state magnetic memory has the magnetic device.

Abstract: A method of producing oxide whiskers is provided which comprises heating a source material comprised of a metal or an inorganic compound at a first temperature to be vaporized and depositing a crystal constitutive material vaporized from the source material on a substrate heated at a second temperature lower than the first temperature.

Abstract: A magnetic device has a layer containing fine pores and having wirings on both faces of the layer formed on a substrate, wherein at least a part of the pores are filled with a layered column formed by stacking magnetic layers and nonmagnetic layers alternately, and at least a part of the pores filled with a conductive column as writing wires for writing into the magnetic layers in the adjacent pores. The fine pores may be nano-holes of alumina formed by anodic oxidation. A part of the pores may serve to intercept a magnetic field. The magnetic layer may contain Co, and the nonmagnetic layer and/or the writing wire may contain Cu. The pores may be arranged in a honeycomb arrangement or a rectangular array. The ratio of the sectional area S (cm2) of the pore and the length (cm) of the pore satisfy the relation: 105<L/S<108.

Abstract: The present invention provides a magnetic device to be used by flowing an electric current in the direction of depth of pores comprising a porous layer on a substrate, ferromagnetic layers and a non-magnetic layer being laminated within all or a part of pores, a first ferromagnetic layer, and a second ferromagnetic layer having a smaller coercive force than the first ferromagnetic layer, the first ferromagnetic layer being laminated on the second ferromagnetic layer by being separated with the non-magnetic layer, wherein the first ferromagnetic layer contains the same elements as in the second ferromagnetic layer, the proportion of each element being different between the two ferromagnetic layers.

Abstract: A method of manufacturing a structure with pores which are formed by anodic oxidation and whose layout. pitch, position, direction, shape and the like can be controlled. The method includes the steps of: disposing a lamination film on a substrate, the lamination film being made of insulating layers and a layer to be anodically oxidized and containing aluminum as a main composition; and performing anodic oxidation starting from an end surface of the lamination film to form a plurality of pores having an axis substantially parallel to a surface of the substrate, wherein the layer to be anodically oxidized is sandwiched between the insulating layers, and a projected pattern substantially parallel to the axis of the pore is formed on at least one of the insulating layers at positions between the pores.

Abstract: The invention provides a nanostructure including an anodized film including nanoholes. The anodized film is formed on a substrate having a surface including at least one material selected from the group consisting of semiconductors, noble metals, Mn, Fe, Co, Ni, Cu and carbon. The nanoholes are cut completely through the anodized film from the surface of the anodized film to the surface of the substrate. The nanoholes have a first diameter at the surface of the anodized film and a second diameter at the surface of the substrate. The nanoholes are characterized in that either a constriction exists at a location between the surface of the anodized film and the surface of the substrate, or the second diameter is greater than the first diameter.

Abstract: An electron-beam excitation laser has a laser structure with a light emitter and reflectors on one hand and an electron source on the other hand, wherein at least part of the light emitter or reflectors has a multidimensional photonic crystal structure. An electron-beam excitation laser includes an electron source emitting electrons and a laser structure consisting of a light emitter and reflectors, accelerates electrons from the electron source, and irradiates the electrons to the laser structure to emit a laser beam from the laser structure, wherein the reflectors and/or the light emitter in the laser structure are formed with multidimensional photonic crystals in which dielectrics with different dielectric constants are arrayed in a plurality of directions at periodic intervals, and one of the dielectrics with different dielectric constants may be formed with a light-emitting material.

Abstract: The invention provides a nanostructure including an anodized film including nanoholes. The anodized film is formed on a substrate having a surface including at least one material selected from the group consisting of semiconductors, noble metals, Mn, Fe, Co, Ni, Cu and carbon. The nanoholes are cut completely through the anodized film from the surface of the anodized film to the surface of the substrate. The nanoholes have a first diameter at the surface of the anodized film and a second diameter at the surface of the substrate. The nanoholes are characterized in that either a constriction exists at a location between the surface of the anodized film and the surface of the substrate, or the second diameter is greater than the first diameter.

Abstract: A method for producing narrow wires including titanium oxide of high crystallinity and diameter of the order of nanometer, in particular whiskers of titanium oxide, and including a first step of preparing a base having a titanium-including surface, second step of discretely depositing a material other than titanium over the above surface, and third step of thermally treating the above surface, obtained by the second step, in a titanium-oxidizing atmosphere.