Abstract
The structural states of the semiconductors Zn1−xNixSe (x=0.0025) and Zn1−xCrxSe (x=0.0029) are investigated by the method of thermal neutron diffraction. Large-scale shear displacements of the atoms of the ZnSe lattice are observed, presumably brought on by the Jahn-Teller ions Cr2+ and Ni2+. The results of a study of the impurity heat capacity of the solid solutions Zn1−xMxSe (M=Cr2+,Ni2+) in the temperature interval 1.8–20K are presented. A heat-capacity method for determining the energy of intracenter transitions in these systems is described and employed. The role of the Jahn–Teller effect in the formation of the low-energy excited states of 3d ions in ZnSe is discussed.
Published Version
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