Anomalous field-insensitive heavy-fermion state in SmOs4Sb12
β Scribed by Y. Aoki; S. Sanada; H. Aoki; D. Kikuchi; H. Sugawara; H. Sato
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 212 KB
- Volume
- 378-380
- Category
- Article
- ISSN
- 0921-4526
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π SIMILAR VOLUMES
We have made ultrasonic measurements on a filled skutterudite PrOs 4 Sb 12 showing a heavy Fermion superconductivity at T C ΒΌ 1:85 K: The elastic constants Γ°C 11 Γ C 12 Γ=2 and C 44 of PrOs 4 Sb 12 exhibit low-temperature softenings below 20 K down to T C ; indicating a quadrupole fluctuation of Pr
Considering the fact that the hybridization bands of the two spins are shifted differently by the Zeeman energy, we adopt a two-"band" model to study the field dependence of the anomalous Hall resistance of the heavy-fermion compounds. Starting from the periodic Anderson Hamiltonian, we use the stan