Abstract:
The present invention relates to a laminated nanostructure including magnetic nanoparticles having a perpendicular magnetic anisotropy, to a method for producing same, and to a magnetic storage medium using same. More particularly, the present invention relates to a laminated nanostructure which is produced using a porous thin film as a template, and by depositing magnetic nanoparticles in the pores of the thin film through an electrodeposition process. As a result, the gaps between nanoparticles are uniform, the sizes of nanoparticles are small, and nanoparticles are free from a polarity interaction therebetween, thus enabling each of the nanoparticles to have its own polarity, and to achieve perpendicular magnetic properties.
Abstract:
The self-assembly of a close-packed, highly-ordered monolayers of molecularly protected nanoparticles on an assembly surface is disclosed. Also disclosed is the transfer of a nanoparticle monolayer from an assembly surface to a transfer surface. The transfer of a monolayer or multilayer structure of nanoparticles from a transfer surface to a substrate by conformal contact of the transfer surface with the substrate is disclosed. Also disclosed is the removal of protective molecules from nanoparticle cores by exposure to an oxidizing atmosphere (optionally in the presence of UV radiation). The exchange of protective molecules in molecularly protected nanoparticles with other molecules is also disclosed.
Abstract:
A method of forming a magnetic recording device having a film of magnetisable nanoparticles, which comprises preparing a suspension of magnetisable nanoparticles in a carrier fluid and depositing said fluid suspension onto a substrate surface as droplets having a volume less than about 1 nl to form said film of magnetisable nanoparticles as a dry residue of the deposited fluid suspension. The invention also broadly relates to methods of forming magnetisable, inorganic and protein films.
Abstract:
A method and apparatus for microencapsulating or electrodeposited coating of ferromagnetic and soft-magnetic sub-micron or nano sized powderized material comprising use of a rotary flow-through device assisted by an electromagnet within the electrode ring to alternately position the powder at the face of the cathode ring and electroplate the powder and reorient it prior to another repositioning, The invention is also of a process and apparatus for forming a strip, mesh, or film from magnetic powderized material in an organized bipolar arrangement, which is particularly useful for electroforming foils with the magnetic particles positioned in a monolayer within a multilayer metallic foil.
Abstract:
A multiple composite one-dimensional structural body having a layered structure in which a linear structure which is an element of a one-dimensional structure having a finite curvature is composed of a finer one-dimensional structure having a finite curvature, wherein one-dimensional structures between at least two layers are coupled at least at one portion. For example, a multiple-turn spiral structure having a layered structure in which a linear structure which is an element of a spiral structure is composed of a finer spiral structure, wherein spiral structures between at least two layers are coupled at least at one portion. Alternatively a multiple ring structural body having a layered structure in which a linear structure which is an element of a ring structure is composed of a finer ring structure, wherein ring structures between at least two layers are coupled at least at one portion.
Abstract:
The abstract was not in accordance with PCT Rule 8.1(b) because it was more than 150 words in length The abstract has been established by this Authority to read as follows: Composites, designed 'MNPC" materials, are formed by methods of which an exemplary method includes preparing a liquid suspension of magnetic nanoparticles in a carrier liquid in which the nanoparticles are not soluble The carrier liquid can form a rigid polymer matrix for the nanoparticles whenever the earner liquid is exposed to a ngidification condition A first rigidification condition is applied to the suspension to rigidily the earner liquid into the polymer matrix and thus form a rigid MNPC matenal. A fluidizing condition is applied to the rigid MNPC matenal to fluidize the matrix and allow movement of the nanoparticles in the matrix While the matrix is fluid, the MNPC material is magnetically poled by exposure to an external magnetic field
Abstract:
A tunable optical element and method for tuning an optical element. The optical element comprises a fluidic medium; a plurality of magnetic nanoparticles suspended in the fluidic medium; and means for tuning an effective refractive index of the optical element based on induced changes in a micro/nanoscale structure of the magnetic nanoparticles within the fluidic medium.
Abstract:
The present invention relates to a laminated nanostructure including magnetic nanoparticles having a perpendicular magnetic anisotropy, to a method for producing same, and to a magnetic storage medium using same. More particularly, the present invention relates to a laminated nanostructure which is produced using a porous thin film as a template, and by depositing magnetic nanoparticles in the pores of the thin film through an electrodeposition process. As a result, the gaps between nanoparticles are uniform, the sizes of nanoparticles are small, and nanoparticles are free from a polarity interaction therebetween, thus enabling each of the nanoparticles to have its own polarity, and to achieve perpendicular magnetic properties.
Abstract:
A spin injector for use in a microelectronic device such as a field effect transistor (FET) is disclosed. The spin injector includes an array of ferromagnetic elements disposed within a semiconductor. The ferromagnetic elements within the array are arranged and spaced with respect to one another in a close arrangement such that electrons or holes are spin-polarized when passing through. The spin injector may be located above or at least partially within a source region of the FET. A spin injector structure may also be located above or at least partially within the drain region of the FET. The spin injector includes a semiconductor material containing an array of ferromagnetic elements disposed in the semiconductor material, wherein adjacent ferromagnetic elements within the array are separated by a distance within the range between about 1 nm and 100 nm.