Core Photoemission Spectra of U3P4 and U3As4 Single Crystals

Shigemasa Suga; Hideyuki Harada; Hideki Matsubara; Yuji Saitoh; Akio Kimura; Shin Imada; Susumu Ogawa; Akira Ochiai; Takashi Suzuki

doi:10.1143/jpsj.66.3566

Core Photoemission Spectra of U₃P₄ and U₃As₄ Single Crystals

Shigemasa Suga, Hideyuki Harada, Hideki Matsubara, Yuji Saitoh, Akio Kimura, Shin Imada, Susumu Ogawa, Akira Ochiai, Takashi Suzuki

Author information

Shigemasa Suga
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Hideyuki Harada
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Hideki Matsubara
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Yuji Saitoh
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Akio Kimura
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Shin Imada
Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
Susumu Ogawa
Tanashi Branch of the Institute for Solid State Physics, The University of Tokyo, Tanashi, Tokyo 188
Akira Ochiai
Department of Physics, Tohoku University, Sendai, Miyagi 980–77
Takashi Suzuki
Department of Physics, Tohoku University, Sendai, Miyagi 980–77

Keywords: uranium pnictides, photoemission, core lineshape, asymmetry

JOURNAL RESTRICTED ACCESS

1997 Volume 66 Issue 11 Pages 3566-3569

DOI https://doi.org/10.1143/jpsj.66.3566

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Abstract

The lineshapes of core photoemission spectra of U₃P₄ and U₃As₄ single crystals are studied. It is found that the U derived core states show characteristic asymmetry except for the oxidized surface, whereas the asymmetry is negligible for the anion derived core states. These results are discussed by considering the screening effect by the U 6d state and hybridization effects. The constant final state spectra in the U 5d→ 5f absorption region is also discussed.

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