Document Type

Article

Publication Date

9-1968

Journal or Book Title

Physical Review Letters

Volume

21

Issue

10

First Page

689

Last Page

691

DOI

10.1103/PhysRevLett.21.689

Abstract

The shifts of the first two exciton peaks with hydrostatic pressure have been measured in CsI films at 78°K and found to be linear. The deformation potentials deduced are -2.10 eV and +2.10 eV, respectively. These results confirm Onodera's assignment of the two peaks to excitons derived from bands of different symmetry. The data indicate that above 7 kbar the conduction bands cross and the Γ12 level lies below the Γ1 (Onodera's assignment).

Comments

This article is from Physical Review Letters 21 (1968): 689, doi:10.1103/PhysRevLett.21.689. Posted with permission.

Copyright Owner

The American Physical Society

Language

en

File Format

application/pdf

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