Unraveling the 4f electronic structures of cerium monopnictides
Unraveling the 4f electronic structures of cerium monopnictides
复制标题
揭示单硝化铈的 4f 电子结构
DOI:
10.1088/1361-648x/abaa82
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发表时间:
2019-11
期刊:
影响因子:
--
通讯作者:
Li Huang
中科院分区:
文献类型:
--
作者:
Haiyan Lu;Li Huang
We employed a state-of-the-art first-principles many-body approach, namely the density functional theory in combination with the single-site dynamical mean-field theory, to study the 4f electronic structures in cerium monopnictides (CeX, where X=N, P, As, Sb, and Bi). We find that the 4f electrons in CeN are highly itinerant and mixed-valence, showing a prominent quasiparticle peak near the Fermi level. On the contrary, they become well localized and display weak valence fluctuation in CeBi. It means that a 4f itinerant-localized crossover could emerge upon changing the X atom from N to Bi. Moreover, according to the low-energy behaviors of 4f self-energy functions, we could conclude that the 4f electrons in CeX also demonstrate interesting orbital-selective electronic correlations, which are similar to the other cerium-based heavy fermion compounds.
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影响因子:
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通讯作者:
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DOI:
--
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期刊:
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