56 research outputs found
MAGNETISATION DENSITY IN Pd2MnSb
No full textLes facteurs de structure, le facteur de forme magnétique et la distribution spatiale de la densité d'aimantation dans le composé Pd2MnSb ont été déterminés par des mesures de diffraction de neutrons polarisés faites sur le diffractomètre D3 de l'I.L.L. On observe un moment ferromagnétique important essentiellement localisé sur les sites ordonnés des Mn. Le facteur de forme magnétique est en bon accord avec celui calculé par Watson et Freeman pour les ions Mn++. Un moment magnétique équivalent mais de signe opposé est observé sur le petit nombre d'atomes Mn occupant une position désordonnée (sites Sb). On n'observe pas de moment mesurable sur les sites du Pd.The structure factors, magnetic form factor and the spatial distribution of the magnetisation density in Pd2MnSb have been studied by polarised neutron diffraction using the D3 diffractometer at I.L.L. The large ferromagnetic moment observed is essentially localised at the ordered Mn sites and the magnetic form factor is in good agreement with that for Mn++ ions calculated by Watson and Freeman. An equivalent but negative moment is observed on the small proportion of disordered Mn atoms occupying Sb sites. No measurable moment was observed on the Pd sites
The use of cross‐sectional evidence for estimation of trends in consumption: With reference to British and Greek data for meats
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Prudential regulation, its international background and the performance of the banks a critical review of the South African environment since 1970
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The Effects of Persuasive Communication On Attitudes of Smokers and Non-Smokers of Cigarettes
No full textPhylogeny, adaptive radiation and historical biogeography of Bromeliaceae: insights from an 8-locus plastid phylogeny.
No full textThe authors gratefully acknowledge fi nancial support for this
investigation by grants from the National Science Foundation to P.E.B.,
K.J.S., and T.J.G. (DEB-9981587), T.J.G. (DEB-0830036), K.J.S. (DEB-
0431258), and G.L.B. and T.M.E. (DEB-0129446 and DEB-0129414), and
from the Hertel Gift Fund to T.J.G., from the Commission for
Interdisciplinary Ecological Studies (KI Ö S) at the Austrian Academy of
Sciences ( Ö AW, 2007-02 to W.T. and M.H.J.B., and from the Deutsche
Forschungsgemeinshaft (ZI 557/7-1, SCHU 2426/1-1) and the Hessian
initiative for the development of scientifi c and economic excellence
(LOEWE) at the Biodiversity and Climate Research Centre, Frankfurt am
Mein, to G.Z. and K.S.Peer Reviewe
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