Dynamical coupling of dilute magnetic impurities with quantum spin liquid state in the S=3/2 dimer compound Ba3ZnRu2O9
Dynamical coupling of dilute magnetic impurities with quantum spin liquid state in the S=3/2 dimer compound Ba3ZnRu2O9
复制标题
S=3/2 二聚体化合物 Ba3ZnRu2O9 中稀磁性杂质与量子自旋液态的动态耦合
DOI：
10.1088/1361-648x/aad5ac
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Terasaki Ichiro
中科院分区：
文献类型：
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作者：
Yamamoto Takafumi D;Taniguchi Hiroki;Terasaki Ichiro
研究了稀磁杂质对量子自旋液体候选化合物Ba3ZnRu2O9和自旋能隙化合物Ba3CaRu2O9的磁性的影响。每种化合物的磁基态都反对2%的磁性杂质取代Zn或Ca。我们发现，这些杂质的磁响应表现为顺磁自旋，依赖于基质材料，两者的差异表现在韦斯温度上，这在Ba3 ZnRu2 O9的情况下很难单独用稀磁杂质来解释.我们考虑的贡献，从Ru 5+离子，这将只出现在取代的Ba3 ZnRu2 O9和讨论可能的物理意义所观察到的韦斯温度。
We have investigated the dilute magnetic impurity effect on the magnetic properties of a quantum spin liquid candidate Ba 3 ZnRu 2 O 9 and a spin gapped compound Ba 3 CaRu 2 O 9. The magnetic ground state of each compound stands against 2% substitution of magnetic impurities for Zn or Ca. We have found that the magnetic response of these impurities, which behave as paramagnetic spins, depends on the host materials and the difference of the two manifests itself in the Weiss temperature, which can hardly be explained by the dilute magnetic impurities alone in the case of Ba 3 ZnRu 2 O 9. We consider a contribution from the Ru 5+ ions which would appear only in the substituted Ba 3 ZnRu 2 O 9 and discuss a possible physical meaning of the observed Weiss temperature.