Low-Energy Optical Absorption Peak in Aluminum and Al-Mg Alloys
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1970-07-01
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Physics and Astronomy
Physics and astronomy are basic natural sciences which attempt to describe and provide an understanding of both our world and our universe. Physics serves as the underpinning of many different disciplines including the other natural sciences and technological areas.
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Abstract
Measurements of the absorptivity of Al and dilute Al-Mg alloys were made at 4.2 K in the 0.2- to 5-eV energy region by a calorimetric technique. In addition to the well-known conductivity peak around 1.6 eV, another peak has been found near 0.5 eV. These peaks are present in the alloys, broadened, but unshifted, as well as in Al. The peaks are at about 2|V200|and 2|V111|, respectively, where the V's are Fourier coefficients of the pseudopotential.
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Tis article is from Physical Review Letters 25 (1970): 156, doi:10.1103/PhysRevLett.25.156. Posted with permission.
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Thu Jan 01 00:00:00 UTC 1970