Étude de l'ordre local dans l'arsenic amorphe par diffraction de neutrons
- 1 January 1976
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 37 (12) , 1423-1426
- https://doi.org/10.1051/jphys:0197600370120142300
Abstract
The local order for amorphous arsenic has been investigated by means of neutron diffraction. Experiments performed with 0.7 Å and 1.14 Å wavelength neutrons, provide an accurate determination of the structure factor S(k) from which the pair correlation function g(r) is evaluated. A structural model is given based on a slight expansion of the interlayer spacing of orthorhombic arsenic and an additional ordering due to covalent bonds. The predictions of this model are found to be in good agreement with the observed density, pair correlation function and structure factor especially for the peak of S(k) at 1.08 Å-1 which remained until now unexplained.Keywords
This publication has 2 references indexed in Scilit:
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