Instability of Dianions of Alkali-Metal Clusters

Yoshifumi Noguchi; Soh Ishii; Kaoru Ohno

doi:10.2320/matertrans.46.1103

Yoshifumi Noguchi, Soh Ishii, Kaoru Ohno

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Keywords: first principles, ladder diagram, Bethe–Salpeter equation, T-matrix theory, all-electron mixed-basis approach, double electron affinity

JOURNAL FREE ACCESS

2005 Volume 46 Issue 6 Pages 1103-1105

DOI https://doi.org/10.2320/matertrans.46.1103

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Abstract

In this paper, we discuss the instability of dianions of small alkali-metal clusters (Li₂, Na₂, and K₂) starting from the state-of-the-art GW approximation and taking account of multiple scattering of two particles (hole–hole or electron–electron). The present approach is based on the first principles T-matrix theory in the many-body perturbation theory.

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