ZEEMAN EFFECT OF CR3+ FLUORESCENCE IN SRTIO3

The purely electronic transition of the 8000- fluorescence of pure and chromium-doped SrTiO3 has been studied using applied magnetic fields. The transverse Zeeman spectrum shows that the fluorescence is the magnetic dipole transition from the Eg2 to the A2g4 state of the Cr3+ ion. The Eg2 state is split by the tetragonal crystal field below 110°K. Relative intensities of the components with an applied magnetic field along a [110] direction show that the v component lies highest in energy, indicating that the distortion is tensive. © 1969 The American Physical Society.