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تعداد نتایج: 65179 فیلتر نتایج به سال:
I. Background material 1 A. Mumford-Tate groups and domains B. The structure theorem for global variations of Hodge structure C. Hodge groups and domains II. General context A. Algebro-geometric B. Representation theoretic C. Arithmetic III. Cyclic spaces and their enlargements A. General definitions and some properties B. Two examples C. Enlargements of cycle spaces IV. Penrose-Radon transform...
We report x-ray photoemission spectroscopy results on (Ga,Mn)As films as a function of both temperature and Mn doping. Analysis of Mn 2p core level spectra reveals the presence of a distinct electronic screening channel in the bulk, hitherto undetected in more surface sensitive analysis. Comparison with model calculations identifies the character of the Mn 3d electronic states and clarifies the...
In his 1982 paper, Ogus defined a class of cycles in the de Rham cohomology of smooth proper varieties over number fields. This notion is a crystalline analogue of `-adic Tate cycles. In the case of abelian varieties, this class includes all the Hodge cycles by the work of Deligne, Ogus, and Blasius. Ogus predicted that such cycles coincide with Hodge cycles for abelian varieties. In this paper...
The properties of ceramic materials are strongly influenced by the presence of ultradilute impurities (dopants). Near-edge X-ray absorption fine structure (NEXAFS) measurements using third-generation synchotron sources can be used to identify ultradilute dopants, provided that a good theoretical tool is available to interpret the spectra. Here, we use NEXAFS analysis and first-principles calcul...
in an ultrathin (Ga,Mn)As/(Ga,Mn)(As,P) bilayer T. Niazi, M. Cormier, D. Lucot, L. Largeau, V. Jeudy, 3 J. Cibert, and A. Lemâıtre Laboratoire de Photonique et de Nanostructures, CNRS, 91460 Marcoussis, France Laboratoire de Physique des Solides, Université Paris-Sud – CNRS, 91405 Orsay, France Université Cergy-Pontoise, 95000 Cergy-Pontoise, France. Institut Néel, CNRS – Université Joseph Four...
In the seniority scheme the reduced B(E2: 0 + 1 → 2 + 1) (B(E2)↑) transition probability of even-even nuclei can be related to the product of the number of particles by the number of holes of the valence space. This very simple expression is used to analyze at the same time the experimental B(E2)↑ values of 56−68 Ni and those of 62−72 Zn. The evolution of these B(E2)↑ values with neutron number...
In the search for new marker genes suitable to distinguish chondrocytes from osteoblasts and mesenchymal stem cells in culture, we have identified and characterized a novel gene called chondrocyte expressed protein-68 (CEP-68), harbouring an N-terminal leader peptide and an epidermal growth factor-like calcium-binding domain. CEP-68 defines a new family of proteins and complements collagen type...
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