“…crystals, nor even parallel to the external field. An exact solution of this self-energy calculation is impossible ; so we have approximated it, following the Rittner et al [34] approach using the results of Uzan and Chandrasekharan [35] ; these last authors have shown that in MgF2, the electronic polarizabilities can be considered as a scalars. The values obtained for He and Hh are respectively -0.277 Rydberg and -0.179 Rydberg.…”
“…crystals, nor even parallel to the external field. An exact solution of this self-energy calculation is impossible ; so we have approximated it, following the Rittner et al [34] approach using the results of Uzan and Chandrasekharan [35] ; these last authors have shown that in MgF2, the electronic polarizabilities can be considered as a scalars. The values obtained for He and Hh are respectively -0.277 Rydberg and -0.179 Rydberg.…”
Contents
Zntroduction
Fqsee-ion polurixabilities
Crgstalline-state polayimbilities
Effect of crystalline environment on electronic polarixabilities
Relationship between polarixabilities and ionic radii
Photoelustic bchaviour
ConclusionsRefemnces l )
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