Paramagnetic resonance spectra of Eu++ in CdSe and CdTe

Abstract

The paramagnetic resonance spectra of Eu++ in the semiconducting compounds CdSe and CdTe have been measured at 77°K. The results obtained are compared with those obtained by Dorain for Eu++ in CdS and with results for Eu++ in other crystals. The parameters describing the spectrum are found to be much less sensitive to changes in covalent bonding than are the parameters describing the behavior of the 3d5 configuration of Mn++ in these compounds. The variations in the parameters for Eu++ from compound to compound are compared with existing theories for the variations. © 1964 The American Physical Society.