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Article
Deformation Potentials for Excitons in CsI
Physical Review Letters
  • David W. Lynch, Iowa State University
  • A. D. Brothers, Iowa State University
Document Type
Article
Publication Date
9-1-1968
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
Date Available
2015-01-15
File Format
application/pdf
Citation Information
David W. Lynch and A. D. Brothers. "Deformation Potentials for Excitons in CsI" Physical Review Letters Vol. 21 Iss. 10 (1968) p. 689 - 691
Available at: http://works.bepress.com/david_lynch1/98/