作者: B. Karmakar , P.K. Chatterjee , D.S. Ray , D. Nath , M. Chowdhury
DOI: 10.1016/0009-2614(84)85700-0
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摘要: Abstract The 2 K 15/2 and 13/2 states of Er 3+ have been assigned on the basis circular-dichroism/optical-density (CD/OD) ratio in two optically active crystals, Er—pyrogermanate Er—diglycollate.