Pressure-Dependent Coupling of the 3A2(F) and 1T2(D) States of Ni2+ in ZnS and ZnSe |
| D. Wasik, M. Baj Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland and Z. Liro High Pressure Research Center "Unipress", Sokołowska 29, 01-142 Warszawa, Poland |
| Received: August 8, 1990 |
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| We have investigated two close-lying 3A2(F) and 1T2(D) states of Ni2+ impurity in ZnS and ZnSe. These states are strongly coupled to each other via the spin-orbit interaction and therefore, small variations of their energies induced by pressure have significantly changed absorption spectra related to them. In order to give a good interpretation to the experimental results we took into account the interaction between both states, their coupling to the lattice vibrations and the pressure-dependent separation between them. |
| DOI: 10.12693/APhysPolA.79.319 PACS numbers: 71.55.-i |