作者: P. Kisliuk , N. C. Chang , P. L. Scott , M. H. L. Pryce
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摘要: Abstract : The lower energy levels of a number transitions due to second, third, and fourth nearest neighbor chromium ion pairs in ruby are located by measuring the temperature dependence optical absorption. Energy level diagrams constructed, from which many observed lines identified. measurements consistent with earlier results for ground states first, third,, pairs. ground-state second describable an isotropic exchange interaction. coupling parameters first four types used estimate Neel Curie-Weiss temperatures Cr2O3. (Author)