Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1809044 | Physica B: Condensed Matter | 2015 | 4 Pages |
Abstract
The optical band positions of W5+ octahedral clusters (WO6)7− in tungsten oxide (WO3)-based glasses are reassigned and suggested. Based on this, the spin-Hamiltonian parameters (g factors g//, g⊥ and hyperfine structure constants A//, A⊥) of these W5+ clusters are calculated from the high-order perturbation formulas based on the two-mechanism model. In the model, besides the contributions due to crystal-field (CF) mechanism in the extensively-used CF theory, the contributions owing to charge-transfer (CT) mechanism (which are often omitted) are also included. The calculated results are in reasonable agreement with the experimental values and the signs of hyperfine structure constants Ai are suggested. The results are discussed.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Ren-Ming Peng, Yang Mei, Wen-Chen Zheng, Cheng-Fu Wei,