Evidence for Changes in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>s</mi><mo>−</mo><mi>d</mi></math></span> Hybridization in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>α</mi></math></span>-Phase Cu-Ge Alloys from Positron Annihilation Experiments

L. M. Pecora; A. C. Ehrlich

doi:10.1103/PhysRevLett.46.1476

Evidence for Changes in $s - d$ Hybridization in $α$ -Phase Cu-Ge Alloys from Positron Annihilation Experiments

L. M. Pecora and A. C. Ehrlich

Naval Research Laboratory, Washington, D. C. 20375

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Phys. Rev. Lett. 46, 1476 – Published 1 June, 1981

DOI: https://doi.org/10.1103/PhysRevLett.46.1476

Abstract

Measurements of angular correlation of $γ$ rays from positron annihilation in Cu-Ge alloys have been used to reconstruct the momentum density in these alloys in the (110) plane. The densities show, for the first time in a copper alloy, details beyond fermiology which are linked to the detailed character of the electron wave functions and thus to $s - d$ hybridization. This hybridization undergoes large and anisotropic changes upon the alloying of Cu with Ge.

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Evidence for Changes in $s - d$ Hybridization in $α$ -Phase Cu-Ge Alloys from Positron Annihilation Experiments

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Evidence for Changes in s−d Hybridization in α-Phase Cu-Ge Alloys from Positron Annihilation Experiments

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Evidence for Changes in $s - d$ Hybridization in $α$ -Phase Cu-Ge Alloys from Positron Annihilation Experiments