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Reorientation and degrees of binding of X 2+ -vacancy complexes in KCl
The reorientation of impurity-vacancy complexes in KCl crystals doped with Mg 2+ , Ni 2+ , Mn 2+ , Ca 2+ , Sr 2+ , Pb 2+ and Ba 2+ was studied using the ITC method. These results are analysed together with those obtained by other authors by ITC, EPR and optical methods on Cd 2+ , Be 2+ , Eu 2+ , Sm...
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| Published in: | Journal of physics. C, Solid state physics Solid state physics, 1974-08, Vol.7 (15), p.2593-2602 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | The reorientation of impurity-vacancy complexes in KCl crystals doped with Mg
2+
, Ni
2+
, Mn
2+
, Ca
2+
, Sr
2+
, Pb
2+
and Ba
2+
was studied using the ITC method. These results are analysed together with those obtained by other authors by ITC, EPR and optical methods on Cd
2+
, Be
2+
, Eu
2+
, Sm
2+
and Yb
2+
ions. For the first series of ions and Cd
2+
, it was concluded that the most favoured vacancy position is the NNN site, and that it increasingly dominates the NN site as one proceeds from Mg
2+
to Ba
2+
. The observed reorientation of complexes is mainly governed by the vacancy jump from the NNN to the NN position. In the case of Be
2+
it was found that the majority of vacancies are in the NN position and the special behaviour of the Eu
2+
, Sm
2+
and Yb
2+
rare earth ions is discussed. |
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| ISSN: | 0022-3719 |
| DOI: | 10.1088/0022-3719/7/15/009 |