Hard X-ray and soft X-ray photoemission study of vanadium oxides

R. Eguchi; Y. Takata; M. Matsunami; K. Horiba; K. Yamamoto; M. Taguchi; A. Chainani; M. Yabashi; D. Miwa; Y. Nishino; K. Tamasaku; T. Ishikawa; Y. Senba; H. Ohashi; I. H. Inoue; S. Shin

doi:10.1016/j.jmmm.2006.10.207

Hard X-ray and soft X-ray photoemission study of vanadium oxides

R. Eguchi, Y. Takata, M. Matsunami, K. Horiba, K. Yamamoto, M. Taguchi, A. Chainani, M. Yabashi, D. Miwa, Y. Nishino, K. Tamasaku, T. Ishikawa, Y. Senba, H. Ohashi, I. H. Inoue, S. Shin

研究成果 › 査読

抄録

We study the electronic structure of Mott-Hubbard systems SrVO₃ and CaVO₃ with photoemission spectroscopy (PES) using hard X-rays (HX) (h ν∼ 8 keV) and soft X-rays (SX) (h ν∼ 900 eV). In HX-PES results, the V 2p core levels of SrVO₃ and CaVO₃ show clear additional intensity, which are not observed in SX-PES. These features originate from bulk screening by coherent states at Fermi level as observed in other 3d transition metal oxides. From the comparison between SrVO₃ and CaVO₃ in HX-PES, the intensity in SrVO₃ is nearly similar to CaVO₃. The results suggest screening from coherent states is more efficient in HX-PES compared to SX-PES.

本文言語	English
ページ（範囲）	e289-e291
ジャーナル	Journal of Magnetism and Magnetic Materials
巻	310
号	2 SUPPL. PART 2
DOI	https://doi.org/10.1016/j.jmmm.2006.10.207
出版ステータス	Published - 3月 1 2007
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

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10.1016/j.jmmm.2006.10.207

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Eguchi, R., Takata, Y., Matsunami, M., Horiba, K., Yamamoto, K., Taguchi, M., Chainani, A., Yabashi, M., Miwa, D., Nishino, Y., Tamasaku, K., Ishikawa, T., Senba, Y., Ohashi, H., Inoue, I. H., & Shin, S. (2007). Hard X-ray and soft X-ray photoemission study of vanadium oxides. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 2), e289-e291. https://doi.org/10.1016/j.jmmm.2006.10.207

Eguchi, R, Takata, Y, Matsunami, M, Horiba, K, Yamamoto, K, Taguchi, M, Chainani, A, Yabashi, M, Miwa, D, Nishino, Y, Tamasaku, K, Ishikawa, T, Senba, Y, Ohashi, H, Inoue, IH & Shin, S 2007, 'Hard X-ray and soft X-ray photoemission study of vanadium oxides', Journal of Magnetism and Magnetic Materials, vol. 310, no. 2 SUPPL. PART 2, pp. e289-e291. https://doi.org/10.1016/j.jmmm.2006.10.207

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title = "Hard X-ray and soft X-ray photoemission study of vanadium oxides",

abstract = "We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with photoemission spectroscopy (PES) using hard X-rays (HX) (h ν∼ 8 keV) and soft X-rays (SX) (h ν∼ 900 eV). In HX-PES results, the V 2p core levels of SrVO3 and CaVO3 show clear additional intensity, which are not observed in SX-PES. These features originate from bulk screening by coherent states at Fermi level as observed in other 3d transition metal oxides. From the comparison between SrVO3 and CaVO3 in HX-PES, the intensity in SrVO3 is nearly similar to CaVO3. The results suggest screening from coherent states is more efficient in HX-PES compared to SX-PES.",

keywords = "Bulk electronic structure, Photoemission",

author = "R. Eguchi and Y. Takata and M. Matsunami and K. Horiba and K. Yamamoto and M. Taguchi and A. Chainani and M. Yabashi and D. Miwa and Y. Nishino and K. Tamasaku and T. Ishikawa and Y. Senba and H. Ohashi and Inoue, {I. H.} and S. Shin",

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doi = "10.1016/j.jmmm.2006.10.207",

language = "English",

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T1 - Hard X-ray and soft X-ray photoemission study of vanadium oxides

AU - Eguchi, R.

AU - Takata, Y.

AU - Matsunami, M.

AU - Horiba, K.

AU - Yamamoto, K.

AU - Taguchi, M.

AU - Chainani, A.

AU - Yabashi, M.

AU - Miwa, D.

AU - Nishino, Y.

AU - Tamasaku, K.

AU - Ishikawa, T.

AU - Senba, Y.

AU - Ohashi, H.

AU - Inoue, I. H.

AU - Shin, S.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with photoemission spectroscopy (PES) using hard X-rays (HX) (h ν∼ 8 keV) and soft X-rays (SX) (h ν∼ 900 eV). In HX-PES results, the V 2p core levels of SrVO3 and CaVO3 show clear additional intensity, which are not observed in SX-PES. These features originate from bulk screening by coherent states at Fermi level as observed in other 3d transition metal oxides. From the comparison between SrVO3 and CaVO3 in HX-PES, the intensity in SrVO3 is nearly similar to CaVO3. The results suggest screening from coherent states is more efficient in HX-PES compared to SX-PES.

AB - We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with photoemission spectroscopy (PES) using hard X-rays (HX) (h ν∼ 8 keV) and soft X-rays (SX) (h ν∼ 900 eV). In HX-PES results, the V 2p core levels of SrVO3 and CaVO3 show clear additional intensity, which are not observed in SX-PES. These features originate from bulk screening by coherent states at Fermi level as observed in other 3d transition metal oxides. From the comparison between SrVO3 and CaVO3 in HX-PES, the intensity in SrVO3 is nearly similar to CaVO3. The results suggest screening from coherent states is more efficient in HX-PES compared to SX-PES.

KW - Bulk electronic structure

KW - Photoemission

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U2 - 10.1016/j.jmmm.2006.10.207

DO - 10.1016/j.jmmm.2006.10.207

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AN - SCOPUS:33847328044

SN - 0304-8853

VL - 310

SP - e289-e291

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 2

ER -

Hard X-ray and soft X-ray photoemission study of vanadium oxides

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