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De Haas-van Alphen effect on PrRu$$_4$$Sb$$_{12}$$

Matsuda, Tatsuma; Abe, Keisuke*; Watanuki Fumihito*; Sugawara, Hitoshi*; Aoki, Yuji*; Sato, Hideyuki*; Inada, Yoshihiko*; Settai, Rikio*; Onuki, Yoshichika

The angular dependence of de Haas-van Alphen effect has been measured to reveal the electronic structure of filled skutterudite PrRu$$_4$$Sb$$_{12}$$. The angular dependence of de Haas-van Alphen frequency of PrRu$$_4$$Sb$$_{12}$$ is in good agreement with that of LaRu$$_4$$Sb$$_{12}$$. Compared with PrFe$$_4$$P$$_{12}$$, no anomalous enhancement of cyclotron effective mass has been observed in this system. This change of electronic structure is attributed to the difference in the $$c-f$$ hybridization strength, which is expected from the large difference in the lattice parameters.

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Category:Physics, Condensed Matter

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