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Investigation of the Electronic Structure of Molybdenum Single Crystal Surfaces by Means of the Positron Annihilation Method

✍ Scribed by V. T. Adonkin; I. Ya. Dekhtyail; V. I. Silantev

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
377 KB
Volume
56
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

A model is proposed explaining the β€œfine structure” of angular distribution curves of annihilation photons (ACAP) obtained by the interaction of positrons with the electron density on the crystal surface. Data were presented which prove the influence of a deformation on the (110) plane of Mo and of weak magnetic fields (1.2 Oe) on the shape of ACAP curves obtained from the surface of this crystal face. The deformation effect is discussed in conjunction with the interaction between positrons and crystal structure defects on the crystal surface. The influence of a weak magnetic field is discussed with the excitement of the surface magnetic levels.

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## Abstract The angular distributions of annihilation quanta (AD) coming from the two‐photon annihilation of a positron‐electron pair are measured for V~0.96~Fe~0.04~H~__x__~ alloys. The results are discussed in view of application to the description of the electronic structure of the system under