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Radiation damage evolution and its relation with dopant distribution during self-annealing implantation of As in silicon
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"COMPOSITION AND STRUCTURE OF Si-Ge LAYERS PRODUCED BY ION IMPLANTATION AND LASER MELTING" J. Mater. Res. 6, 2120 (1991).
No full textStudy of the lattice strain relaxation in the AlxGa1-xSb /GaSb system by X-ray topography and high resolution diffraction
No full textDynamics of void formation during implantation of Si under self-annealing conditions and their influence on dopant distribution
No full textLattice strain determination in MOVPE grown ZnTe epilayers on GaAs by RBS-channeling and reflectance spectroscopy
No full textThe determination of elastic strain in MOVPE-grown ZnTe epitaxial layers on (100)GaAs by ion channeling Rutherford backscattering spectrometry (RBS) and low temeprature (10K) reflectance spectroscopy is reported in this paper. The crystalline and optical quality of the examined samples is very good as estimated by photoluminescence spectroscopy in conjunction with ion channeling and reflectance measurements. This allowed us to perform meaningful and accurate strain measurements on all investigated samples. The present in-plane strain values obtained by the two techniques are consistent in the range of the epilayer thicknesses examined, showing that the total measured strain increases monothonically with the epilayer thickness. Also, its sign changes from negative (compressive) to positive (tensile) values at around 300 nm. This effect is explained by considering the occurrence of a thickness-dependent residual compressive strain superposed to the expected thermal strain, the latter being caused by the cooling down of the ZnTe/GAs structure from the growth temperature to room temprature
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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