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arXiv 1612.03421cond-mat.str-el
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混价化合物YbFe PDMATHAAB Al $_{10}$的单晶生长及物性表征

Single crystal growth and physical property characterizations of mixed valent compound YbFe$_2$Al$_{10}$

J. L. Lv, R. Y. Chen, H. P. Wang, J. L. Luo, N. L. Wang

摘要:

本文报道了YbFe $_2$ Al $_{10}$化合物的单晶生长和物理性能表征。电阻率、磁化率和比热的测量结果与以往对多晶样品的研究结果不同。一个混合价的特点与中度质量增强表示。特别是,光学光谱测量揭示了多个杂化能隙的形成,其在低温下逐渐变得明显。多重杂化能隙可能是由于Yb4 $f$电子的平带与不同导电子带的杂化所致。

英文摘要:

We report single crystal growth and physical properties characterization of YbFe$_2$Al$_{10}$ compounds. The measurements of resistivity, magnetic susceptibility, and specific heat show different behaviors from previous studies on polycrystal samples. A mixed valent characteristic with moderate mass enhancement is indicated. In particular, the optical spectroscopy measurement reveals formation of multiple hybridization energy gaps which become progressively pronounced at low temperature. The multiple hybridization energy gaps are likely caused by the hybridizations between the flat band from Yb 4$f$ electrons and different bands of conduction electrons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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