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A COMPARISON OF ANGULAR BEHAVIORS AMONG ELECTRON AND POSITRON SCATTERING FACTORS

S. Y. TONG

Department of Physics and Laboratory for Surface Studies, University of Wisconsin–Milwaukee, Milwaukee, WI 53201, USA

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and

C. W. MOK

Department of Physics, The University of Hong Kong, Hong Kong, China

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https://doi.org/10.1142/S0218625X00000269Cited by:2 (Source: Crossref)

Abstract

In this review, we discuss the angular anisotropies in the scattering factors of electrons and positrons for scattering by atoms in solids. We show that, as a function of the angle, the maximum number of dips in the scattering factor's magnitude and jumps of near π in its phase are related to the angular momenta of the bound and resonance states of the potential. The effect of the scattering factor's anisotropies on low-energy electron and positron holographic wave-front reconstruction is discussed.