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Helmholtz Fermi surface harmonics: an efficient approach for treating anisotropic problems involving Fermi surface integrals
(IOP Publishing, 2014-06-09)
We present a new efficient numerical approach for representing anisotropic physical quantities and/or matrix elements defined on the Fermi surface (FS) of metallic materials. The method introduces a set of numerically ...
Studying the influence of substitutional elements on mechanical behavior of Alloy 718
(EDP Sciences, 2014)
In nickel-based superalloys, substitutional solute species have a strong impact on in service mechanical properties as well as on oxidation and corrosion resistances. In alloy 718, recent studies carried out by tensile ...
Acoustic plasmons in extrinsic free-standing graphene
(IOP Publishing, 2014-08-04)
An acoustic plasmon is predicted to occur, in addition to the conventional two-dimensional (2D) plasmon, as the collective motion of a system of two types of electronic carriers coexisting in the same 2D band of extrinsic ...
Optical properties of metals: Infrared emissivity in the anomalous skin effect spectral region
(American Institute of Physics, 2014-09-07)
When the penetration depth of an electromagnetic wave in a metal is similar to the mean free path of the conduction electrons, the Drude classical theory is no longer satisfied and the skin effect becomes anomalous. Physical ...
Spectral emissivity of copper and nickel in the mid-infrared range between 250 and 900 ºC
(Elsevier, 2014-01-15)
A study on the radiative properties of two pure metals, copper and nickel, using a high accuracy radiometer is carried out. Their spectral emissivity between 3 and 21 μm and its dependence on emission angle and temperature ...