论文部分内容阅读
We deduce new expressions for g-factors of the 3d9 ions with a compressional tetragonal symmetry, in which weconsider not only the contribution from the spin-orbit coupling of the central transition metal ion but also that ofthe ligand orbits as well as the admixture of 2B1g into 2A1g (ground state). By using the new formulae, the electronparamagnetic resonance g-factors for NaCl:Ni+(Ⅰ) are studied. Thus, the puzzle that the gll-shift is positive is reasonablyexplained.