The trigonal distortions of Ni2+, V2+, Mn2+ and Co2+ ions in ZnSiF6. 6H(2)O crystal have been studied by analysing their zero-field splittings and the anisotropy of g factor (characterized by Delta g = g(perpendicular to) - g(parallel to)) From the studies, it is found that the sign of trigonal distortion (compression or elongation) of octahedral environment of impurity ion is impurity-dependent, i.e., when the ionic radius of impurity is greater than that of the replaced Zn2+ ion, the octahedral environment of impurity is compressed, whereas if the ionic radius of impurity is smaller than that of Zn2+, it is elongated. This point is similar to the case of isomorphous pure crystal where the paramagnetic ion is the host ion rather than the impurity.
部门归属
sichuan univ, dept mat sci, chengdu 610064, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china
W. C. Zheng. Local trigonal distortions of some paramagnetic impurity centers in ZnSiF6 center dot 6H(2)O crystal[J]. Radiation Effects and Defects in Solids,1997,140(3-4):329-334.
APA
W. C. Zheng.(1997).Local trigonal distortions of some paramagnetic impurity centers in ZnSiF6 center dot 6H(2)O crystal.Radiation Effects and Defects in Solids,140(3-4),329-334.
MLA
W. C. Zheng."Local trigonal distortions of some paramagnetic impurity centers in ZnSiF6 center dot 6H(2)O crystal".Radiation Effects and Defects in Solids 140.3-4(1997):329-334.
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