Abstract
The Yb-based heavy-fermion compound Yb2Ni12P7 with a hexagonal Zr2Fe12P7-type crystal structure was investigated by using the 31P nuclear magnetic resonance (NMR) technique. The complicated NMR line changes its shape gradually with decreasing temperature, implying the presence of some Knight shift components. The temperature dependences of the Knight shift and the nuclear spin-lattice relaxation rate 1/T 1 suggest the delocalization of 4f electrons.
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In the strict sense, 1/T 1 for H ⊥ c reflects the fluctuation both along the c-axis and within the basal-plane in the hexagonal crystal structure.
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Koyama, T., Sugiura, K., Ueda, K. et al. Intermediate valence behavior of Yb2Ni12P7 studied by using 31P NMR. Journal of the Korean Physical Society 63, 416–419 (2013). https://doi.org/10.3938/jkps.63.416
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DOI: https://doi.org/10.3938/jkps.63.416