Linear, diatomic crystal: single-electron states and large-radius excitons

Details Linear, diatomic crystal: single-electron states and large-radius excitons Linear, diatomic crystal: single-electron states and large-radius excitons

2008-04-02

arxiv.org/abs/0804.0449v3

Low Temperature Physics 35, 394 (2009)

Physics

Condensed Matter

Other Condensed Matter

9 pages, 1 figure, 1 table

Scientific paper

10.1063/1.3132746

The large-radius exciton spectrum in a linear crystal with two atoms in the unit cell was obtained using the single-electron eigenfunctions and the band structure, which were found by the zero-range potential (ZRP) method. The ground-state exciton binding energies for the crystal in vacuum appeared to be larger than the corresponding energy gaps for any set of the crystal parameters.

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