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Cd(1-x)Fe(x)Se room temperature reflectivity in the 10-25 eV energy range
No full textThe reflectivity spectra of Cd1-xFexSe (x = 0, 0.07 and 0.14) have been measured in the energy range 10-25 eV and structures have been assigned to transitions from the Cd 4d and Se 5s states to the conduction bands. The assignment has been supported by theoretical ab-initio calculations of the band structure and the optical properties of pure hypothetical zinc blende CdSe. The band structure and the density of states have been obtained using the self-consistent relativistic LMTO method. The theoretical spectrum has been calculated with the inclusion of k-dependent transition matrix elements. The energy shifts of the maxima as die Fe concentration increases have been discussed
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
PHOTOACOUSTIC INVESTIGATION OF THE ABSORPTION-EDGE OF CD1-XFEXTE COMPOUNDS
No full textWe have measured at room temperature the photoacoustic spectra of Cd1-xFexTe (0 3T1 transition within the Fe2+ (3d6) manifold. We observed also a broadening and a shift to higher energies of the CdTe absorption edge for increasing x
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