Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu2Si2

T. Okane; I. Kawasaki; A. Yasui; T. Ohkochi; Y. Takeda; S. I. Fujimori; Y. Saitoh; H. Yamagami; A. Fujimori; Y. Matsumoto; N. Kimura; T. Komatsubara; H. Aoki

doi:10.1143/JPSJS.80SA.SA060

Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu₂Si₂

T. Okane^*, I. Kawasaki, A. Yasui, T. Ohkochi, Y. Takeda, S. I. Fujimori, Y. Saitoh, H. Yamagami, A. Fujimori, Y. Matsumoto, N. Kimura, T. Komatsubara, H. Aoki

^*この論文の責任著者

理学科　物理学プログラム

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

2 被引用数 (Scopus)

抄録

Angle-resolved photoelectron spectroscopy was measured in the Ce 3d→4f resonance energy region for the paramagnetic state of CeRu₂Si ₂, Ce_0.84La_0.16Ru₂Si₂ and LaRu₂Si₂ to investigate a variation of band structures around the quantum critical point (QCP). While the results clearly demonstrate the difference of the band structures between CeRu₂Si₂ and LaRu₂Si₂, the observed band structures of CeRu ₂Si₂ and Ce_0.84La_0.16Ru ₂Si₂ resemble each other. The results indicate that the Ce 4 f electrons in the paramagnetic state have an itinerant character in either side of the critical composition, and Ce_1-xLa_xRu ₂Si₂ near QCP is similar to CeRu₂(Si _1-xGe_x)₂.

本文言語	英語
論文番号	SA060
ジャーナル	Journal of the Physical Society of Japan
巻	80
号	SUPPL. A
DOI	https://doi.org/10.1143/JPSJS.80SA.SA060
出版ステータス	出版済み - 2011/07

ASJC Scopus 主題領域

物理学および天文学一般

文献へのアクセス

10.1143/JPSJS.80SA.SA060

引用スタイル

Okane, T., Kawasaki, I., Yasui, A., Ohkochi, T., Takeda, Y., Fujimori, S. I., Saitoh, Y., Yamagami, H., Fujimori, A., Matsumoto, Y., Kimura, N., Komatsubara, T., & Aoki, H. (2011). Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu₂Si₂. Journal of the Physical Society of Japan, 80(SUPPL. A), 記事 SA060. https://doi.org/10.1143/JPSJS.80SA.SA060

@article{ec9f50d7a0d549d0ac45d10680bfb6e3,

title = "Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu2Si2",

abstract = "Angle-resolved photoelectron spectroscopy was measured in the Ce 3d→4f resonance energy region for the paramagnetic state of CeRu2Si 2, Ce0.84La0.16Ru2Si2 and LaRu2Si2 to investigate a variation of band structures around the quantum critical point (QCP). While the results clearly demonstrate the difference of the band structures between CeRu2Si2 and LaRu2Si2, the observed band structures of CeRu 2Si2 and Ce0.84La0.16Ru 2Si2 resemble each other. The results indicate that the Ce 4 f electrons in the paramagnetic state have an itinerant character in either side of the critical composition, and Ce1-xLaxRu 2Si2 near QCP is similar to CeRu2(Si 1-xGex)2.",

keywords = "Angle-resolved photoelectron spectroscopy, Heavy fermion, Quantum criticality",

author = "T. Okane and I. Kawasaki and A. Yasui and T. Ohkochi and Y. Takeda and Fujimori, {S. I.} and Y. Saitoh and H. Yamagami and A. Fujimori and Y. Matsumoto and N. Kimura and T. Komatsubara and H. Aoki",

year = "2011",

month = jul,

doi = "10.1143/JPSJS.80SA.SA060",

language = "英語",

volume = "80",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

number = "SUPPL. A",

}

Okane, T, Kawasaki, I, Yasui, A, Ohkochi, T, Takeda, Y, Fujimori, SI, Saitoh, Y, Yamagami, H, Fujimori, A, Matsumoto, Y, Kimura, N, Komatsubara, T & Aoki, H 2011, 'Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu₂Si₂', Journal of the Physical Society of Japan, vol. 80, no. SUPPL. A, SA060. https://doi.org/10.1143/JPSJS.80SA.SA060

TY - JOUR

T1 - Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu2Si2

AU - Okane, T.

AU - Kawasaki, I.

AU - Yasui, A.

AU - Ohkochi, T.

AU - Takeda, Y.

AU - Fujimori, S. I.

AU - Saitoh, Y.

AU - Yamagami, H.

AU - Fujimori, A.

AU - Matsumoto, Y.

AU - Kimura, N.

AU - Komatsubara, T.

AU - Aoki, H.

PY - 2011/7

Y1 - 2011/7

N2 - Angle-resolved photoelectron spectroscopy was measured in the Ce 3d→4f resonance energy region for the paramagnetic state of CeRu2Si 2, Ce0.84La0.16Ru2Si2 and LaRu2Si2 to investigate a variation of band structures around the quantum critical point (QCP). While the results clearly demonstrate the difference of the band structures between CeRu2Si2 and LaRu2Si2, the observed band structures of CeRu 2Si2 and Ce0.84La0.16Ru 2Si2 resemble each other. The results indicate that the Ce 4 f electrons in the paramagnetic state have an itinerant character in either side of the critical composition, and Ce1-xLaxRu 2Si2 near QCP is similar to CeRu2(Si 1-xGex)2.

AB - Angle-resolved photoelectron spectroscopy was measured in the Ce 3d→4f resonance energy region for the paramagnetic state of CeRu2Si 2, Ce0.84La0.16Ru2Si2 and LaRu2Si2 to investigate a variation of band structures around the quantum critical point (QCP). While the results clearly demonstrate the difference of the band structures between CeRu2Si2 and LaRu2Si2, the observed band structures of CeRu 2Si2 and Ce0.84La0.16Ru 2Si2 resemble each other. The results indicate that the Ce 4 f electrons in the paramagnetic state have an itinerant character in either side of the critical composition, and Ce1-xLaxRu 2Si2 near QCP is similar to CeRu2(Si 1-xGex)2.

KW - Angle-resolved photoelectron spectroscopy

KW - Heavy fermion

KW - Quantum criticality

UR - http://www.scopus.com/inward/record.url?scp=80052395860&partnerID=8YFLogxK

U2 - 10.1143/JPSJS.80SA.SA060

DO - 10.1143/JPSJS.80SA.SA060

M3 - 学術論文

AN - SCOPUS:80052395860

SN - 0031-9015

VL - 80

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - SUPPL. A

M1 - SA060

ER -

Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu2Si2

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Resonant angle-resolved photoelectron spectroscopy of substitutional solid solutions of CeRu₂Si₂