Explanations of the optical absorption and ESR spectrum for tetragonal Ni+ centers in CuAlS2:Ni+ crystals

✍ Scribed by Ying Wu; Li-Juan J. Wang; Guo-Yue Liu

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 309 KB
• Volume: 45
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.201000121

✦ Synopsis

In this paper, the optical absorption and electron spin resonance (ESR) spectrum of Ni + -doped CuAlS 2 crystals have been studied by using a double spin-orbit (SO) coupling approximation model, where the effects due to the SO coupling of the central metal 3d 1 ion and those of ligands are included. From this model, the formulas of the ESR g factors g // , g ⊥ and hyperfine structure constants A // , A ⊥ for 3d 1 ions in the tetragonal MX 4 clusters are constructed. The optical absorption and ESR parameters for Cu + sites of CuAlS 2 have been calculated. The results obtained show that Ni + ions substitute for Cu + ions sites.