PARAMAGNETIC RESONANCE IN SOME LANTHANON ETHYL SULPHATES
PARAMAGNETIC RESONANCE IN SOME LANTHANON ETHYL SULPHATES
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DOI：
10.1098/rspa.1958.0074
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发表时间：
1958-01-01
影响因子：
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通讯作者：
BLEANEY, B
中科院分区：
文献类型：
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作者：
BAKER, JM;BLEANEY, B
本文结合硫酸乙酯单晶中Pr~（3+）、Tb~（3+）和Ho~（3+）离子的实验结果，讨论了稀土离子中偶数个未成对4 π电子的顺磁共振现象。用Elliott & Stevens的晶体场理论解释了结果。一些二级微扰机制被认为是引起明显的四极和超精细结构的相互作用。实验获得的核数据为：~（141）Pr：I = 5/2，~（141）Pr：I = 3.92 ± 0.2n。M. ~（159）Tb：I = 3/2;~（159）Tb：I = 1.52 ± 0.08 n. M. 167Ho：I = 7/2; μ =+3.29 ± 0.17n. M. Q =+0.7 ± 0.7仓。
Paramagnetic resonance in rare earth ions with an even number of unpaired 4ƒ electrons is discussed with particular reference to experimental results in Pr3+, Tb3+and Ho3+ions in single crystals of the ethyl sulphates. The crystal field theory of Elliott & Stevens is used to interpret the results. Some second-order perturbation mechanisms are considered which give rise to apparent quadrupole and hyperfine structure interactions. The following nuclear data are obtained from these experiments :141Pr :I= 5/2 ; │μ│= 3.92 ± 0.2 n. m. ;159Tb :I= 3/2 ; │μ│= 1.52 ± 0.08 n. m. ;167Ho :I= 7/2 ;μ= + 3.29 ± 0.17 n. m. ;Q= + 0.7 ± 0.7 barn.