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Itinerant U 5f band states in the layered compound UFeGa5 observed by soft X-ray angle-resolved photoemission spectroscopy

Shin-ichi Fujimori·Kota Terai·Yukiharu Takeda·Tetsuo Okane·Yuji Saitoh·Yasuji Muramatsu·Atsushi Fujimori·Hiroshi Yamagami·Yoshifumi Tokiwa·Shugo Ikeda·Tatsuma D. Matsuda·Yoshinori Haga·Etsuji Yamamoto·Yoshichika Onuki
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Abstract

We have performed angle-resolved photoemission spectroscopy (ARPES) experiments on paramagnetic UFeGa5 using soft X-ray synchrotron radiation (hn=500eV) and derived the bulk- and U 5f-sensitive electronic structure of UFeGa5. Although the agreement between the experimental band structure and the LDA calculation treating U 5f electrons as being itinerant is qualitative, the morphology of the Fermi surface is well explained by the calculation, suggesting that the U 5f states can be essentially understood within the itinerant-electron model.

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Shin-ichi Fujimori, Kota Terai, Yukiharu Takeda, Tetsuo Okane, Yuji Saitoh, Yasuji Muramatsu, Atsushi Fujimori, Hiroshi Yamagami, Yoshifumi Tokiwa, Shugo Ikeda, Tatsuma D. Matsuda, Yoshinori Haga, Etsuji Yamamoto, Yoshichika Onuki. 2006-04-20. Itinerant U 5f band states in the layered compound UFeGa5 observed by soft X-ray angle-resolved photoemission spectroscopy. https://doi.org/10.1103/physrevb.73.125109

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