Cr5+ in SrTiO3: An example of a static Jahn-Teller effect in A d1 system |
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| Authors: | H.J. de Jong M. Glasbeek |
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| Affiliation: | Laboratory for Physical Chemistry, University of Amsterdam, Nieuwe Prinsengracht 126, Amsterdam, The Netherlands |
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| Abstract: | The effect of uniaxial stress on the EPR spectrum of Cr5+ in SrTiO3 has been studied. It is concluded that SrTiO3:Cr5+ is a static Jahn-Teller system. The strain-coupling coefficient V2 is found to be 2 × 104 cm?1. Our results show that in the absence of external stress the intensity ratio of the EPR lines, at temperatures below the cubic-to-tetragonal phase transition, is related to the macroscopic strain, present in SrTiO3 at these temperatures. |
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