Site-selective 11B NMR studies on YbAlB4 (CROSBI ID 226088)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Takano, Shun ; Grbić, Mihael Srđan ; Kimura, Kimura ; Yoshida, Makoto ; Takigawa, Masashi ; O'Farrell, Eoin C. T. ; Kuga, Kentaro ; Nakatsuji, Satoru ; Harima, Hisatomo
engleski
Site-selective 11B NMR studies on YbAlB4
β-YbAlB4 is a distinctive heavy fermion superconductor that exhibits unconventional quantum criticality without tuning in a strongly intermediate valence state. In this paper, we report the result of 11B NMR measurements on the single crystals of, β-YbAlB4 and α- YbAlB4, the locally isostructural polymorph of β-YbAlB4. All 11B NMR lines for both samples were successfully assigned to inequivalent crystallographic sites by comparing the experimental results and the ab-initio calculation of the electric field gradient. In both compounds, the anisotropy of the Knight shift exhibits a characteristic radial pattern, indicating approximate axial symmetry of the hybridization between the Yb-4f electrons and the conduction electrons.
NMR; heavy fermion; site symmetry
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Podaci o izdanju
683
2016.
012008-1-012008-6
objavljeno
1742-6588
10.1088/1742-6596/683/1/012008
Povezanost rada
Fizika