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- W2091492443 abstract "The magnetic correlations between Ce 4f electrons and conduction electrons in the new tetragonal compound CeRu2Al2B have been investigated by 27Al nuclear magnetic resonance (NMR). The 27Al NMR spin–lattice relaxation rate 1/T1 exhibits a large magnetic anisotropy for field directions. Within a localized moment picture, the Ce 4f spin-fluctuation rates Γ|| for the c-axis and Γ⊥ for the c-plane are evaluated by taking account of the magnetic anisotropy. The relation of (Gamma _{parallel } gg Gamma _{ bot }), which holds in the entire temperature range, indicates that the c–f hybridization between the ligand conduction electrons and the Ce 4f electrons with the (Gamma _{7}^{(1)}) crystal electric field ground state is anisotropic. From the temperature dependence of Γ, it is found that the Kondo effect dominates the Ruderman–Kittel–Kasuya–Yosida (RKKY) interaction at high temperatures, whereas below 60 K the RKKY interaction overcomes the Kondo effect and causes the magnetic order. These results indicate that the anisotropic c–f hybridization plays a vital role in realization of the Ising-type ferromagnetic magnetic ground state in CeRu2Al2B." @default.
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- W2091492443 date "2014-10-15" @default.
- W2091492443 modified "2023-10-03" @default.
- W2091492443 title "Ising-Type Ferromagnetic Ground State Driven by Anisotropic <i>c</i>–<i>f</i> Hybridization in CeRu<sub>2</sub>Al<sub>2</sub>B" @default.
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- W2091492443 doi "https://doi.org/10.7566/jpsj.83.103709" @default.
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