The fine and hyperfine structures in paramagnetic resonance spectra of ~5Mn~(2+) ions in natural calcite have been studied at the microwave frequencies of about 9400MHz.

• 我们研究了天然方解石中~(55)Mn~(2+)离子在微波频率约为9400兆赫频段的顺磁共振谱的精细结构和超精细结构。