The tetragonal elastic dipole Cr5+ in SrTiO3

2018-01-30T15:43:30Z (GMT) by Thomas Kool
Tetragonal Cr<sup>5+</sup> impurity centre in single crystals of the perovskite SrTiO<sub>3</sub>. After careful analyses we came to the conclusion that this centre is an off-centre system and no Jahn-Teller impurity. From the previous stress experiments in EPR we calculated the linear stress coupling tensor as β = 3.56×10<sup>-30</sup> m<sup>3</sup>, which is in agreement with other stress coupling tensors of off-centre systems in SrTiO<sub>3</sub> as well as BaTiO<sub>3</sub>.