The ESR spectra of BaCl2: Eu powder showed that Eu2+ ion substituting the ion Ba2+ is situated in a crystal field of the orthorhcmbic symmetry.
英
美
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制備和用X射線(xiàn)分析BaCl_2:Eu微晶的結構,并測量它的電子自旋共振(ESR)譜,結構分析和ESR譜都表明,替代Ba~(2+)的Eu~(2+)離子是處在軸對稱(chēng)的正交晶場(chǎng)中;
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