We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Exciton and biexciton energies in bilayer systems
View graph of relations

« Back

Exciton and biexciton energies in bilayer systems

Research output: Contribution to journalJournal article


Article number033303
<mark>Journal publication date</mark>4/01/2005
<mark>Journal</mark>Physical Review B
Number of pages3
<mark>Original language</mark>English


We report calculations of the energies of excitons and biexcitons in ideal two-dimensional bilayer systems within the effective-mass approximation with isotropic electron and hole masses. The exciton energies are obtained by a simple numerical integration technique, while the biexciton energies are obtained from diffusion quantum Monte Carlo calculations. The exciton binding energy decays as the inverse of the separation of the layers, while the binding energy of the biexciton with respect to dissociation into two separate excitons decays exponentially.

Bibliographic note

© 2005 The American Physical Society