Thermally-Induced Depolarization Current Spectra of NaCl:Ni2+ Crystals |
| M. Suszyńska W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Pl. Katedralny 1, 50-950 Wrocław, Poland and R. Capelletti Physics Department, Parma University, Parma, Italy |
| Received: June 3, 1991; in final form: July 29, 1991 |
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| The technique of thermally stimulated depolarization currents was exploited to search dipolar defects in NaCl crystals doped with divalent nickel in a wide concentration range. The results were critically compared with those typical of other impurities. It has been shown that the main features of the detected polarizations are qualitatively similar to those characteristic of alkali halides doped with divalent cations. The differences observed in some instances can be understood in terms of different mobility and/or stability of the elementary defects related with the impurities. |
| DOI: 10.12693/APhysPolA.80.129 PACS numbers: 77.40.+i |