Hyperfine interactions in CeB6

Hyperfine interactions in CeB6
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CeB6 中的超精细交互

DOI:
10.1143/jpsj.69.510
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
K. Hanzawa
K. Hanzawa
中科院分区:
--
文献类型:
--
作者:
K. Hanzawa

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结果表明,ceb6中B核超精细场的主要来源是B离子的2s态和2p态电子携带的电子自旋与相邻Ce离子的4f态杂化的核矩转移的超精细相互作用。偶极-偶极相互作用与Ce离子的磁矩也有重要作用。在反铁四极有序相II中,必须假设Γ 5型矩的有序。本文还讨论了Γ - 5型四极矩之间的RKKY相互作用最强的原因,并对ceb6中在许多方面起重要作用的p-f混合强度进行了估计。
It is shown that the main origin of the hyperfine field at B nuclei in CeB 6 is the transferred hyperfine interaction of the nuclear moment with the electronic spin carried by the electrons in the 2 s and 2 p states of the B ion hybridized with the 4 f states of neighboring Ce ions. The dipole-dipole interaction with the magnetic moments of Ce ions also contributes substantially. In the antiferro-quadrupolar ordering phase II, it is essential to assume the ordering of Γ 5 -type moments. The reason why the RKKY interaction between the Γ 5 -type quadrupole moments is strongest is also discussed, on the basis of the estimate of the strength of p-f mixing which plays a vital role in many respects in CeB 6 .