摘要:
A method for making a superconducting article includes the steps of providing a biaxially textured substrate. A seed layer is then deposited. The seed layer includes a double perovskite of the formula A2B′B″O6, where A is rare earth or alkaline earth metal and B′ and B″ are different rare earth or transition metal cations. A superconductor layer is grown epitaxially such that the superconductor layer is supported by the seed layer.
摘要:
A superconducting article includes a substrate having a biaxially textured surface, and an epitaxial biaxially textured superconducting film supported by the substrate. The epitaxial superconducting film includes particles of Ba2RENbO6 and is characterized by a critical current density higher than 1 MA/cm2 at 77K, self-field. In one embodiment the particles are assembled into columns. The particles and nanocolumns of Ba2RENbO6 defects enhance flux pinning which results in improved critical current densities of the superconducting films. Methods of making superconducting films with Ba2RENbO6 defects are also disclosed.
摘要翻译:超导制品包括具有双轴纹理化表面的基底和由基底支撑的外延双轴纹理超导薄膜。 外延超导膜包括Ba2RENbO6的颗粒,其特征在于在77K处的自激的临界电流密度高于1MA / cm 2。 在一个实施方案中,颗粒被组装成柱。 Ba2RENbO6缺陷的颗粒和纳米柱增强磁通钉扎,导致超导膜的临界电流密度提高。 还公开了制备具有Ba2RENbO6缺陷的超导膜的方法。
摘要:
An article includes a substrate having a surface and a nanofence supported by the surface. The nanofence includes a multiplicity of primary nanorods and branch nanorods, each of the primary nanorods being attached to said substrate, and each of the branch nanorods being attached to a primary nanorods and/or another branch nanorod. The primary and branch nanorods are arranged in a three-dimensional, interconnected, interpenetrating, grid-like network defining interstices within the nanofence. The article further includes an enveloping layer supported by the nanofence, disposed in the interstices, and forming a coating on the primary and branch nanorods. The enveloping layer has a different composition from that of the nanofence and includes a radial p-n single junction solar cell photovoltaic material and/or a radial p-n multiple junction solar cell photovoltaic material.
摘要:
A superconducting article includes a substrate having a biaxially textured surface. A biaxially textured buffer layer, which can be a cap layer, is supported by the substrate. The buffer layer includes a double perovskite of the formula A2B′B″O6, where A is rare earth or alkaline earth metal and B′ and B″ are different transition metal cations. A biaxially textured superconductor layer is deposited so as to be supported by the buffer layer. A method of making a superconducting article is also disclosed.
摘要:
A superconducting article includes a substrate having a biaxially textured surface. A biaxially textured buffer layer, which can be a cap layer, is supported by the substrate. The buffer layer includes a double perovskite of the formula A2B′B″O6, where A is rare earth or alkaline earth metal and B′ and B″ are different transition metal cations. A biaxially textured superconductor layer is deposited so as to be supported by the buffer layer. A method of making a superconducting article is also disclosed.
摘要:
A superconducting article includes a substrate having a biaxially textured surface, and an epitaxial biaxially textured superconducting film supported by the substrate. The epitaxial superconducting film includes particles of Ba2RETaO6 and is characterized by a critical current density higher than 1 MA/cm2 at 77K, self-field. In one embodiment the particles are assembled into columns. The particles and nanocolumns of Ba2RETaO6 defects enhance flux pinning which results in improved critical current densities of the superconducting films. Methods of making superconducting films with Ba2RETaO6 defects are also disclosed.
摘要翻译:超导制品包括具有双轴纹理化表面的基底和由基底支撑的外延双轴纹理超导薄膜。 外延超导膜包括Ba2RETaO6的颗粒,其特征在于在77K处的自激的临界电流密度高于1MA / cm 2。 在一个实施方案中,颗粒被组装成柱。 Ba2RETaO6缺陷的颗粒和纳米柱增强磁通钉扎,导致超导膜的临界电流密度提高。 还公开了制备具有Ba2RETaO6缺陷的超导膜的方法。
摘要:
A simple and controlled method to fabricate a 3D, epitaxial, biaxially textured nanofence comprised of single crystalline MgO nanobelt segments or links that grew both vertically and horizontally along directions of the (100) STO substrate was developed. Continuous supply of Ni catalyst during the co-laser ablation of MgO and Ni metal led to the growth of nanobelts with such a unique morphology. Individual single crystalline MgO nanobelts had a square cross-section with high aspect ratios. X-ray diffraction results obtained from an entire MgO nanofence layer confirmed that MgO nanofence had epitaxial relation with STO substrate of [100]MgO∥[100]STO. Such oxide nanofences can be used as a 3D biaxially-textured nanotemplate for epitaxial growth of wide-ranging, 3D, electronic, magnetic and electromagnetic nanodevices.
摘要:
A thin film structure for photovoltaic applications includes a biaxially textured metal substrate; a seed layer epitaxially disposed on the metal substrate; a barrier layer comprising SrTiO3 epitaxially disposed on the seed layer; a cap layer comprising γ-Al2O3 epitaxially disposed on the SrTiO3 barrier layer; and a crystalline silicon layer epitaxially disposed on the cap layer, where the cap layer comprises a volume fraction of biaxial texture of at least about 80% and the crystalline silicon layer does not include a metal silicide phase.