Electron momentum distribution in nickel and copper employing a renormalized free atom model

Kanhere, D. G. ; Singru, R. M. (1975) Electron momentum distribution in nickel and copper employing a renormalized free atom model Journal of Physics F: Metal Physics, 5 (6). pp. 1146-1154. ISSN 0305-4608

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Official URL: http://iopscience.iop.org/0305-4608/5/6/017?fromSe...

Related URL: http://dx.doi.org/10.1088/0305-4608/5/6/017

Abstract

A renormalized free atom (RFA) model has been extended to calculate the momentum density for the angular correlation of positron annihilation radiation (ACPAR). Recent measurements of the Compton profiles (CP) and ACPAR of Ni and Cu have been analysed by the RFA model. It is found that the RFA model gives a good overall description of the CP data for Ni and Cu and for Ni it supports an electronic configuration closer to 3d94s1. As far as the ACPAR data is concerned, the RFA model does not give an equally satisfactory description of the results. It is suggested that band structure calculations, which give a better agreement with the ACPAR results, are essential to describe positron annihilation data.

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ID Code:16028
Deposited On:16 Nov 2010 13:32
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