Results 51 to 60 of about 6,284,830 (398)
Influence of uncorrelated overlayers on the magnetism in thin itinerant-electron films [PDF]
Phys. Rev. B, Vol.60, 12226 (1999), 1999 The influence of uncorrelated (nonmagnetic) overlayers on the magnetic properties of thin itinerant-electron films is investigated within the single-band Hubbard model. The Coulomb correlation between the electrons in the ferromagnetic layers is treated by using the spectral density approach (SDA).
arxiv +1 more source
Impact of layer defects in ferroelectric thin films [PDF]
, 2004 Based on a modified Ising model in a transverse field we demonstrate that defect layers in ferroelectric thin films, such as layers with impurities, vacancies or dislocations, are able to induce a strong increase or decrease of the polarization depending on the variation of the exchange interaction within the defect layers. A Green's function technique
arxiv +1 more source
Geometrical optics and geodesics in thin layers [PDF]
Phys. Rev. A 98, 063802 (2018), 2018 The propagation of a light ray in thin layer (film) within geometrical optics is considered. It is assumed that the ray is captured inside the layer due to reflecting walls or total internal reflection (in the case of a dielectric layer). It has been found that for a very thin film (the length scale is imposed by the curvature of the surface at a given
arxiv +1 more source
Simplified approach to identification of aerobic actinomycetes by thin-layer chromatography.
Applied microbiology, 1974 A system has been developed for the identification of aerobic actinomycetes in the clinical laboratory based on analysis of whole cells for diaminopimelic acid and carbohydrates and on the ability of the organism to decompose casein, tyrosine, and ...
J. Staneck, G. Roberts
semanticscholar +1 more source
Antimony doping of Si layers grown by solid-phase epitaxy [PDF]
, 1976 We report here that layers of Si formed by solid-phase epitaxial growth (SPEG) can be doped intentionally. The sample consists initially of an upper layer of amorphous Si (~1 µm thick), a very thin intermediate layer of Sb (nominally 5 Å), and a thin ...
Blattner, Richard J. +7 more
core +1 more source
Thermoelectric transport perpendicular to thin film heterostructures using Monte Carlo technique [PDF]
, 2006 The Monte Carlo technique is used to calculate electrical as well as thermoelectric transport properties across thin film heterostructures. We study a thin InGaAsP barrier layer sandwiched between two InGaAs contact layers, when the barrier thickness is in 50nm-2000nm range.
arxiv +1 more source
Scaling effects on the periodic homogenization of a reaction-diffusion-convection problem posed in homogeneous domains connected by a thin composite layer [PDF]
arXiv, 2021 We study the question of periodic homogenization of a variably scaled reaction-diffusion problem with non-linear drift posed for a domain crossed by a flat composite thin layer. The structure of the non-linearity in the drift was obtained in earlier works as hydrodynamic limit of a totally asymmetric simple exclusion process (TASEP) process for a ...
arxiv
Efficient hole-blocking layer-free planar halide perovskite thin-film solar cells
Nature Communications, 2015 Efficient lead halide perovskite solar cells use hole-blocking layers to help collection of photogenerated electrons and to achieve high open-circuit voltages. Here, we report the realization of efficient perovskite solar cells grown directly on fluorine-
Weijun Ke +12 more
semanticscholar +1 more source
Schottky barrier solar cell [PDF]
, 1981 A method of fabricating a Schottky barrier solar cell is described. The cell consists of a thin substrate of low cost material with at least the top surface of the substrate being electrically conductive.
Stirn, R. J., Yeh, Y. C. M.
core +1 more source
, 2012 Here we report a method to fabricate high quality Bi2Se3 thin films using molecular beam epitaxy with a radio frequency cracker cell as an atomic selenium source.
Aharon Kapitulnik +6 more
core +1 more source