English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The existence of polyexcitons, the $N$-body complexes of excitons for $N > 2$in 3D bulk systems, has been controversial for more than 40 years since itsfirst theoretical suggestion. We investigated the stability of fundamentalexcitonic complexes in diamond numerically with the stochastic variationalmethod (SVM) and an explicitly correlated Gaussian (ECG) basis. Theelectron-hole many-body system is described by an effective mass Hamiltonian.Our model includes the effective mass anisotropy and multiple valley and banddegrees of freedom. We show that the excitons, trions, biexcitons, chargedbiexcitons, and triexcitons are stable in diamond. Numerical calculationsreproduce from 81% to 86% of the experimentally reported binding energies forneutral bound states.

Numerical Investigation of Triexciton Stabilization in Diamond with Multiple Valleys and Bands