Abstract:
The present invention provides a non-volatile phase change memory cell containing an electrode contact layer disposed between a metal electrode layer and a phase change material layer, the electrode contact layer being formed of a transparent conducting oxide-based material which has a high electric conductivity, a low thermal conductivity and a good thermal stability. A non-volatile phase change memory cell according to the present invention may be utilized to reduce the electric power needed for reset and set operation.
Abstract:
The present invention provides a phase change non-volatile memory material comprising a base material and at least one non-metallic light element selected from the group consisting of boron, carbon, nitrogen and oxygen, wherein the base material has a composition which corresponds to either that of congruent melting of the type with a minimum melting point or that of eutectic melting within the range of ±0.15 atomic fraction for each constituent element, thereby having a melting temperature of 600° C. or lower. The phase change non-volatile memory material according to the present invention may be utilized to reduce the electric power needed for reset/set operation and thermal interference between memory cells.
Abstract:
The present invention provides a phase change non-volatile memory material comprising a base material and at least one non-metallic light element selected from the group consisting of boron, carbon, nitrogen and oxygen, wherein the base material has a composition which corresponds to either that of congruent melting of the type with a minimum melting point or that of eutectic melting within the range of ±0.15 atomic fraction for each constituent element, thereby having a melting temperature of 600° C. or lower. The phase change non-volatile memory material according to the present invention may be utilized to reduce the electric power needed for reset/set operation and thermal interference between memory cells.
Abstract:
A fiber-optic surface plasmon resonance sensor may include an optical fiber and a surface plasmon excitation layer. The optical fiber may include a core, a cladding surrounding the core, and a depression. The surface plasmon excitation layer may include a first excitation layer, a second excitation layer and an optical waveguide layer between the first excitation layer and the second excitation layer. Incident light incident through the core may be coupled to the surface plasmon excitation layer at a specific angle of incidence and wavelength satisfying the surface plasmon resonance condition. Depending on the polarizing direction of the incident light, an s-polarized component may be coupled to the guided-wave mode in the optical waveguide layer constituting the surface plasmon excitation layer.
Abstract:
Disclosed is a method for growing a thin film, which includes modifying a surface grain size and surface roughness on a thin film to improve the mobility of a carrier and a light scattering effect. The method for growing a thin film includes: forming nuclei of grains having various grain orientations on a substrate; causing first grains having a first specific grain orientation to grow predominantly among the grains having various grain orientations, thereby forming a first preferred texture comprised of the predominantly grown first grains; and then causing second grains having a second grain orientation to grow predominantly, thereby forming a second preferred texture comprised of the predominantly grown second grains, wherein the surface grain size of each of the second grains forming the second texture is larger than that of each of the first grains forming the first texture.
Abstract:
The present invention relates to a high sensitivity localized surface plasmon resonance sensor and to a sensor system using same, the sensor comprising: a first metal layer including a first metal; a second metal layer arranged parallel to the first metal layer and including a second metal; and a conductive cross-linking layer disposed between the first metal layer and the second metal layer, and made of a third metal with a corrosion response that is different than that of the first metal and of the second metal.
Abstract:
An optical data storage medium comprises a super-resolution (SR) layer consisting of thermoelectric material, said SR layer having light absorption, transmittance and reflectance at the wavelength of an incident light and maintaining a crystalline single phase without a structural or chemical change below the melting temperature of the material. SR readout of data from and/or SR writing of data onto the medium is carried out by way of thermoelectrically induced optical changes within a local area of the SR layer under laser irradiation.