Low-Energy Optical Absorption Peak in Aluminum and Al-Mg Alloys | Zendy

Laurence William Bos | Zendy; D. W. Lynch | Zendy

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Low-Energy Optical Absorption Peak in Aluminum and Al-Mg Alloys

Author(s) -

Laurence William Bos,

D. W. Lynch

Publication year - 1970

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.25.156

Subject(s) - materials science , molar absorptivity , absorption (acoustics) , pseudopotential , aluminium , analytical chemistry (journal) , atomic physics , optics , physics , chemistry , metallurgy , chromatography , composite material

Measurements of the absorptivity of Al and dilute Al-Mg alloys were made at 4.2 K in the 0.2to 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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