کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1815482 | 1525244 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigations of the spin-Hamiltonian parameters and the tetragonal distortion due to Jahn-Teller effect for Cu2+ in trigonal CsCdCl3 and CsMgCl3 crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The complete high-order perturbation formulas based on a two-mechanism [i.e., crystal-field (CF) and charge-transfer (CT) mechanisms, the latter is neglected in the widely-used CF theory] model for the spin-Hamiltonian (SH) parameters (g factors g//, g⥠and the hyperfine structure constants A//, Aâ¥) of d9 ions in tetragonal symmetry with the ground state |dx2-y2ã are established. These formulas are used to the calculations of SH parameters for the tetragonal Cu2+ centers in trigonal CsCdCl3 and CsMgCl3 crystals. Form the calculations, these SH parameters are reasonably explained and the tetragonal distortions of the Cu2+ centers due to Jahn-Teller effect in both crystals are obtained. The results (including the tetragonal distortion and the relative importance of CT mechanism) are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issues 8â11, 1 May 2009, Pages 1446-1449
Journal: Physica B: Condensed Matter - Volume 404, Issues 8â11, 1 May 2009, Pages 1446-1449
نویسندگان
Yang Mei, Wen-Chen Zheng,