First Observation of de Haas–van Alphen Effect in PuIn3

Yoshinori Haga; Dai Aoki; Hiroshi Yamagami; Tatsuma D. Matsuda; Kunihisa Nakajima; Yasuo Arai; Etsuji Yamamoto; Akio Nakamura; Yoshiya Homma; Yoshinobu Shiokawa; Yoshichika Onuki

doi:10.1143/jpsj.74.2889

First Observation of de Haas–van Alphen Effect in PuIn₃

Yoshinori Haga, Dai Aoki, Hiroshi Yamagami, Tatsuma D. Matsuda, Kunihisa Nakajima, Yasuo Arai, Etsuji Yamamoto, Akio Nakamura, Yoshiya Homma, Yoshinobu Shiokawa, Yoshichika Onuki

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Keywords: PuIn₃, dHvA, Fermi surface, energy band calculation

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2005 Volume 74 Issue 11 Pages 2889-2892

DOI https://doi.org/10.1143/jpsj.74.2889

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Abstract

We observed de Haas–van Alphen (dHvA) oscillation in a paramagnetic plutonium compound, PuIn₃. In the present paper, we report the first observation of dHvA effect in plutonium compounds. One detected dHvA branch named γ corresponds to a closed band-27 electron Fermi surface, where three kinds of closed Fermi surfaces are calculated on the basis of the 5f-itinerant band model. The cyclotron mass of branch γ was determined as 4.8 m₀. The dHvA signals are found to be extremely reduced as a function of time due to point defects produced by α-decay of ²³⁹Pu.

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