High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects

Goro Nozue; Hidenori Fujiwara; Satoru Hamamoto; Akane Ose; Miwa Tsutsumi; Takayuki Kiss; Atsushi Higashiya; Atsushi Yamasaki; Yuina Kanai-Nakata; Shin Imada; Masaki Oura; Kenji Tamasaku; Makina Yabashi; Tetsuya Ishikawa; Azusa Motouri; Farid Labib; Shintaro Suzuki; Ryuji Tamura; Akira Sekiyama

doi:10.7566/JPSJ.93.074703

High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects

Goro Nozue, Hidenori Fujiwara, Satoru Hamamoto, Akane Ose, Miwa Tsutsumi, Takayuki Kiss, Atsushi Higashiya, Atsushi Yamasaki, Yuina Kanai-Nakata, Shin Imada, Masaki Oura, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Azusa Motouri, Farid Labib, Shintaro Suzuki, Ryuji Tamura, Akira Sekiyama

Department of Materials Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We have investigated the electronic structures of Ce-based 1=1 quasicrystal approximants Au_59.2Ga_25.7Ce_15.1 and Au_60.3Ga_26.1Ce_13.6 by hard X-ray photoemission (HAXPES) and high-resolution photoemission spectroscopy. The localized Ce 4 f electronic states are revealed for both Au–Ga–Ce approximants. Moreover, disorders in the compounds notably affect their electronic states, which has been detected by the core-level HAXPES. Valence-band photoemission spectra show the slight spectral difference depending on the composition ratio, which can be explained by a rigid-band-like shift.

Original language	English
Article number	074601
Journal	journal of the physical society of japan
Volume	93
Issue number	7
DOIs	https://doi.org/10.7566/JPSJ.93.074703
Publication status	Published - Jul 2024

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Nozue, G., Fujiwara, H., Hamamoto, S., Ose, A., Tsutsumi, M., Kiss, T., Higashiya, A., Yamasaki, A., Kanai-Nakata, Y., Imada, S., Oura, M., Tamasaku, K., Yabashi, M., Ishikawa, T., Motouri, A., Labib, F., Suzuki, S., Tamura, R., & Sekiyama, A. (2024). High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects. journal of the physical society of japan, 93(7), Article 074601. https://doi.org/10.7566/JPSJ.93.074703

@article{a2354711c80b4ca5aec4d1eff70b3311,

title = "High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects",

abstract = "We have investigated the electronic structures of Ce-based 1=1 quasicrystal approximants Au59.2Ga25.7Ce15.1 and Au60.3Ga26.1Ce13.6 by hard X-ray photoemission (HAXPES) and high-resolution photoemission spectroscopy. The localized Ce 4 f electronic states are revealed for both Au–Ga–Ce approximants. Moreover, disorders in the compounds notably affect their electronic states, which has been detected by the core-level HAXPES. Valence-band photoemission spectra show the slight spectral difference depending on the composition ratio, which can be explained by a rigid-band-like shift.",

author = "Goro Nozue and Hidenori Fujiwara and Satoru Hamamoto and Akane Ose and Miwa Tsutsumi and Takayuki Kiss and Atsushi Higashiya and Atsushi Yamasaki and Yuina Kanai-Nakata and Shin Imada and Masaki Oura and Kenji Tamasaku and Makina Yabashi and Tetsuya Ishikawa and Azusa Motouri and Farid Labib and Shintaro Suzuki and Ryuji Tamura and Akira Sekiyama",

note = "Publisher Copyright: {\textcopyright}2024 The Physical Society of Japan.",

year = "2024",

month = jul,

doi = "10.7566/JPSJ.93.074703",

language = "English",

volume = "93",

journal = "journal of the physical society of japan",

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Nozue, G, Fujiwara, H, Hamamoto, S, Ose, A, Tsutsumi, M, Kiss, T, Higashiya, A, Yamasaki, A, Kanai-Nakata, Y, Imada, S, Oura, M, Tamasaku, K, Yabashi, M, Ishikawa, T, Motouri, A, Labib, F, Suzuki, S, Tamura, R & Sekiyama, A 2024, 'High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects', journal of the physical society of japan, vol. 93, no. 7, 074601. https://doi.org/10.7566/JPSJ.93.074703

TY - JOUR

T1 - High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants

T2 - Localized 4f Nature and Disorder Effects

AU - Nozue, Goro

AU - Fujiwara, Hidenori

AU - Hamamoto, Satoru

AU - Ose, Akane

AU - Tsutsumi, Miwa

AU - Kiss, Takayuki

AU - Higashiya, Atsushi

AU - Yamasaki, Atsushi

AU - Kanai-Nakata, Yuina

AU - Imada, Shin

AU - Oura, Masaki

AU - Tamasaku, Kenji

AU - Yabashi, Makina

AU - Ishikawa, Tetsuya

AU - Motouri, Azusa

AU - Labib, Farid

AU - Suzuki, Shintaro

AU - Tamura, Ryuji

AU - Sekiyama, Akira

PY - 2024/7

Y1 - 2024/7

N2 - We have investigated the electronic structures of Ce-based 1=1 quasicrystal approximants Au59.2Ga25.7Ce15.1 and Au60.3Ga26.1Ce13.6 by hard X-ray photoemission (HAXPES) and high-resolution photoemission spectroscopy. The localized Ce 4 f electronic states are revealed for both Au–Ga–Ce approximants. Moreover, disorders in the compounds notably affect their electronic states, which has been detected by the core-level HAXPES. Valence-band photoemission spectra show the slight spectral difference depending on the composition ratio, which can be explained by a rigid-band-like shift.

AB - We have investigated the electronic structures of Ce-based 1=1 quasicrystal approximants Au59.2Ga25.7Ce15.1 and Au60.3Ga26.1Ce13.6 by hard X-ray photoemission (HAXPES) and high-resolution photoemission spectroscopy. The localized Ce 4 f electronic states are revealed for both Au–Ga–Ce approximants. Moreover, disorders in the compounds notably affect their electronic states, which has been detected by the core-level HAXPES. Valence-band photoemission spectra show the slight spectral difference depending on the composition ratio, which can be explained by a rigid-band-like shift.

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SN - 0031-9015

VL - 93

JO - journal of the physical society of japan

JF - journal of the physical society of japan

IS - 7

M1 - 074601

ER -

High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects

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