摘要:
A template article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material; is provided, together with a semiconductor article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material, and, a top-layer of semiconductor material upon the buffer material layer.
摘要:
A simplified architecture for a superconducting coated conductor is provided and includes a substrate, a layer of titanium nitride directly upon the substrate, the layer of titanium nitride deposited by ion beam assisted deposition (IBAD), a layer of a buffer material having chemical and structural compatibility with said layer of titanium nitride, the buffer material layer directly upon the IBAD-titanium nitride layer, and a layer of a high temperature superconductive material such as YBCO.
摘要:
A template article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material; is provided, together with a semiconductor article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material, and, a top-layer of semiconductor material upon the buffer material layer.
摘要:
A dielectric composite material comprising at least two crystal phases of different components with TiO2 as a first component and a material selected from the group consisting of Ba1−xSrxTiO3 where x is from 0.3 to 0.7, Pb1−xCaxTiO3 where x is from 0.4 to 0.7, Sr1−xPbxTiO3 where x is from 0.2 to 0.4, Ba1−xCdxTiO3 where x is from 0.02 to 0.1, BaTi1−xZrxO3 where x is from 0.2 to 0.3, BaTi1−xSnxO3 where x is from 0.15 to 0.3, BaTi1−xHfxO3 where x is from 0.24 to 0.3, Pb1−1.3xLaxTiO3+0.2x where x is from 0.23 to 0.3, (BaTiO3)x(PbFeo0.5Nb0.5O3)1−x where x is from 0.75 to 0.9, (PbTiO3)−(PbCo0.5W0.5O3)1−x where x is from 0.1 to 0.45, (PbTiO3)x(PbMg0.5W0.5O3)1−x where x is from 0.2 to 0.4, and (PbTiO3)x(PbFe0.5Ta0.5O3)1−x where x is from 0 to 0.2, as the second component is described. The dielectric composite material can be formed as a thin film upon suitable substrates.
摘要:
A thin film structure including a lanthanum aluminum oxide substrate, a thin layer of homoepitaxial lanthanum aluminum oxide thereon, and a layer of a nonlinear dielectric material thereon the thin layer of homoepitaxial lanthanum aluminum oxide is provided together with microwave and electro-optical devices including such a thin film structure.
摘要:
Dynamic time expansion or compression of a small-amplitude input signal generated with an initial scale is performed using a nonlinear waveguide. A nonlinear waveguide having a variable refractive index is connected to a bias voltage source having a bias signal amplitude that is large relative to the input signal to vary the reflective index and concomitant speed of propagation of the nonlinear waveguide and an electrical circuit for applying the small-amplitude signal and the large amplitude bias signal simultaneously to the nonlinear waveguide. The large amplitude bias signal with the input signal alters the speed of propagation of the small-amplitude signal with time in the nonlinear waveguide to expand or contract the initial time scale of the small-amplitude input signal.
摘要:
An article including a substrate, a layer of an inert oxide material upon the surface of the substrate, (generally the inert oxide material layer has a smooth surface, i.e., a RMS roughness of less than about 2 nm), a layer of an amorphous oxide or oxynitride material upon the inert oxide material layer, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the amorphous oxide material layer is provided together with additional layers such as at least one layer of a buffer material upon the oriented cubic oxide material layer or a HTS top-layer of YBCO directly upon the oriented cubic oxide material layer. With a HTS top-layer of YBCO upon at least one layer of a buffer material in such an article, Jc's of 1.4×106 A/cm2 have been demonstrated with projected Ic's of 210 Amperes across a sample 1 cm wide.
摘要翻译:包括衬底,在衬底表面上的惰性氧化物材料层(通常惰性氧化物材料层具有光滑表面,即小于约2nm的RMS粗糙度)的物品,非晶态层 氧化物或氧氮化物材料在惰性氧化物材料层上,在非晶形氧化物材料层上具有岩盐状结构的定向立方氧化物材料层与另外的层一起提供,例如至少一层缓冲材料层 定向的立方氧化物材料层或YBCO的HTS顶层直接在取向的立方氧化物材料层上。 在这种制品中至少一层缓冲材料上具有HTS顶层的YBCO,已经证明了Jc为1.4×10 6 A / cm 2,并且在1cm宽的样品上已经证明了具有210安培的投影Ic。
摘要:
A composite substrate structure including a substrate, a layer of a crystalline metal oxide or crystalline metal oxynitride material upon the substrate, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the crystalline metal oxide or crystalline metal oxynitride material layer is provided together with additional layers such as one or more layers of a buffer material upon the oriented cubic oxide material layer.Jc′s of 2.3×106 A/cm2 have been demonstrated with projected Ic′s of 320 Amperes across a sample 1 cm wide for a superconducting article including a flexible polycrystalline metallic substrate, an inert oxide material layer upon the surface of the flexible polycrystalline metallic substrate, a layer of a crystalline metal oxide or crystalline metal oxynitride material upon the layer of the inert oxide material, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the crystalline metal oxide or crystalline metal oxynitride material layer, a layer of a buffer material upon the oriented cubic oxide material layer, and, a top-layer of a high temperature superconducting material upon the layer of a buffer material.
摘要翻译:一种复合衬底结构,包括衬底,结晶金属氧化物层或晶体金属氧氮化物材料层,在结晶金属氧化物或结晶金属氧氮化物材料上具有岩盐状结构的定向立方氧化物材料层 层与诸如一层或多层缓冲材料的附加层一起设置在定向立方氧化物材料层上。 已经证明具有2.3×10 6 /厘米2以上的J C 2以及/ 对于包括柔性多晶金属基底的超导物品,在柔性多晶金属基底的表面上的惰性氧化物材料层,在该层上的结晶金属氧化物或结晶金属氮氧化物材料的层,横跨样品1cm宽的320安培 惰性氧化物材料,在结晶金属氧化物或结晶金属氧氮化物材料层上具有岩盐状结构的定向立方氧化物材料层,定向立方氧化物材料层上的缓冲材料层,以及 在缓冲材料层上的高温超导材料的顶层。
摘要:
An article including a substrate, a layer of an inert oxide material upon the surface of the substrate, a layer of an amorphous oxide or oxynitride material upon the inert oxide material layer, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the amorphous oxide material layer, and a layer of a SrRuO3 buffer material upon the oriented cubic oxide material layer is provided together with additional layers such as a HTS top-layer of YBCO directly upon the layer of a SrRuO3 buffer material layer. With a HTS top-layer of YBCO upon at least one layer of the SrRuO3 buffer material in such an article, Jc′s of up to 1.3×106 A/cm2 have been demonstrated with projected IC's of over 200 Amperes across a sample 1 cm wide.
摘要:
A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of strontium titanate or a mixture of strontium titanate and strontium ruthenate and a top-layer of a superconducting material such as YBCO upon the buffer layer.