[摘要]：Temperature dependent magnetic Compton profiles of Ni1-xZnxFe2O4 (x = 0.0, 0.1, 0.2) ferrites have been decomposed into component profiles to determine the site-specific magnetic moments. For a quantitative evaluation of orbital moment, the spin momentum density data have been combined with magnetization data. Interestingly, the orbital magnetic moment decreases from 0.25 +/- 0.03 mu(B)/f.u. (for x = 0.0) to 0.09 +/- 0.03 mu B/f.u. (for x = 0.2) which is in contrast to spin moment. A decrease in ratio of orbital to spin moments in Ni rich ferrites is explained on the basis of spin-orbit coupling and crystal field interaction. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3698385]
