Structure and dynamics of amorphous ZrBe alloys

The extensive study of the short-range order structure, atomic vibration spectrum and electronic properties of amorphous alloys Zr 1− c Be c ( c = 0.3-0.5) is performed using neutron scattering and specific heat measurements. An increase in the Be concentration in the amorphous alloy reduced the dis...

Full description

Saved in:
Bibliographic Details
Published in:Journal of non-crystalline solids 1993-05, Vol.156, p.72-75
Main Authors: Bratkovsky, A.M., Isakov, S.L., Ishmaev, S.N., Sadikov, I.P., Smirnov, A.V., Syrykh, G.F., Hlopkin, M.N., Chernoplekov, N.A.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The extensive study of the short-range order structure, atomic vibration spectrum and electronic properties of amorphous alloys Zr 1− c Be c ( c = 0.3-0.5) is performed using neutron scattering and specific heat measurements. An increase in the Be concentration in the amorphous alloy reduced the distances between nearest similar atoms, shifted and broadened the high-energy part of the vibrational spectrum, increased the Debye temperature and decreased the density of the electron states as well as the superconducting transition temperature. An analysis of the partial radial distributions, obtained by Monte Carlo modeling, indicated that the atomic structure of the amorphous ZrBe alloys was dominated by geometrical factors, such as the atom sizes and system composition. The density of the vibrational states calculated by the recursion method for the structural model with a large number of atoms reproduced well all the main features of the experimental spectra.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(93)90132-H