Spin fluctuation in LiV 2 O 4 studied by muon spin relaxation
Spin fluctuation in LiV 2 O 4 studied by muon spin relaxation
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DOI：
10.1103/physrevb.69.012402
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发表时间：
2004-01
影响因子：
3.7
通讯作者：
A. Koda;R. Kadono;W. Higemoto;K. Ohishi;H. Ueda;C. Urano;S. Kondo;M. Nohara;H. Takagi
中科院分区：
文献类型：
--
作者：
A. Koda;R. Kadono;W. Higemoto;K. Ohishi;H. Ueda;C. Urano;S. Kondo;M. Nohara;H. Takagi
在低至 20 mK 的温度下对 LiV 2 O 4 多晶样品进行了 μ 子自旋弛豫 (μ SR) 测量。在研究的温度范围内没有发现磁序的迹象，证明了样品的高质量。较低温度下的 μ SR 信号显然由几乎相等分配的两个分量组成，表明 V 位点存在不相等的局部磁矩。这有利于除了基于近藤效应之外的机制，以异常增强 LiV 2 O 4 中的电子态密度。
Muon spin relaxation (μ SR) measurements are reported on a polycrystalline sample of LiV 2 O 4 at temperatures down to 20 mK. No sign of magnetic order was found over the investigated range of temperature, proving the high quality of the sample. The μ SR signal at lower temperature is clearly composed of two components with almost equal partition, suggesting the presence of inequivalent local magnetic moments at V sites. This is in favor of mechanisms other than those based on the Kondo effect for an anomalously enhanced electronic density of states in LiV 2 O 4.