Abstract A complete spectrum criterion and a next nearest neighbor model are proposed. Research indicates: 1) Using this criterion can remove the long existing puzzle that different parameters produce different bond lengths. The criterion greatly improve the reliability of optical method for determining the Mn2+-F- distance R. 2) The exponent n and coefficient K in the inverse power law 10Dq=KR-n are obviously affected by next nearest neighbor. 3) Considering the effect can lead to a better result, the next nearest neighbor model is thus more strict and reliable.
Received: 29 June 1999
Revised: 13 September 1999
Accepted manuscript online:
(Optical properties of bulk materials and thin films)
Fund: Project supported in part by the National Natural Science Foundation of China (Grant No. 19474037).
Cite this article:
Sun Wei-li (孙威立), Li Zhao-min (李兆民) DETERMINATION OF THE Mn2+-F- BOND LENGTH USING A COMPLETE SPECTRUM CRITERION AND A NEXT NEAREST NEIGHBOR MODEL 2000 Chinese Physics 9 445
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