Photoemission study of carriers and Ce 4f spectral weight in CeTe 2

J. S. Kang; C. G. Olson; Y. S. Kwon; S. W. Han; K. H. Kim; A. Sekiyama; S. Kasai; S. Suga; B. I. Min

doi:10.1088/0953-8984/16/50/007

Photoemission study of carriers and Ce 4f spectral weight in CeTe ₂

J. S. Kang, C. G. Olson, Y. S. Kwon, S. W. Han, K. H. Kim, A. Sekiyama, S. Kasai, S. Suga, B. I. Min

Department of Physics and Chemistry

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

9 Scopus citations

Abstract

The electronic structure of CeTe₂ has been investigated by performing high-resolution photoemission spectroscopy (PES) measurements on high-quality stoichiometric single crystals of CeTe₂. The Ce 3d XAS measurement indicates that the Ce ions are trivalent. The Ce 4f PES spectrum reveals two-peak structures with the Ce 4f bulk hybridization peak located around 0.8 eV below E_F. The high-resolution, high-energy, bulk-sensitive PES study of CeTe₂ provides evidence for a metallic density of states near E_F. The carriers near E_F consist mainly of Ce 5d and Te(1) 5p states, while the contribution from the Ce 4f and Te(2) 5p states is negligible. This finding agrees with the CDW instability in the Te(1) sheets.

Original language	English
Pages (from-to)	9163-9168
Number of pages	6
Journal	Journal of Physics Condensed Matter
Volume	16
Issue number	50
DOIs	https://doi.org/10.1088/0953-8984/16/50/007
State	Published - 22 Dec 2004

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title = "Photoemission study of carriers and Ce 4f spectral weight in CeTe 2",

abstract = "The electronic structure of CeTe2 has been investigated by performing high-resolution photoemission spectroscopy (PES) measurements on high-quality stoichiometric single crystals of CeTe2. The Ce 3d XAS measurement indicates that the Ce ions are trivalent. The Ce 4f PES spectrum reveals two-peak structures with the Ce 4f bulk hybridization peak located around 0.8 eV below EF. The high-resolution, high-energy, bulk-sensitive PES study of CeTe2 provides evidence for a metallic density of states near EF. The carriers near EF consist mainly of Ce 5d and Te(1) 5p states, while the contribution from the Ce 4f and Te(2) 5p states is negligible. This finding agrees with the CDW instability in the Te(1) sheets.",

author = "Kang, {J. S.} and Olson, {C. G.} and Kwon, {Y. S.} and Han, {S. W.} and Kim, {K. H.} and A. Sekiyama and S. Kasai and S. Suga and Min, {B. I.}",

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TY - JOUR

T1 - Photoemission study of carriers and Ce 4f spectral weight in CeTe 2

AU - Kang, J. S.

AU - Olson, C. G.

AU - Kwon, Y. S.

AU - Han, S. W.

AU - Kim, K. H.

AU - Sekiyama, A.

AU - Kasai, S.

AU - Suga, S.

AU - Min, B. I.

PY - 2004/12/22

Y1 - 2004/12/22

N2 - The electronic structure of CeTe2 has been investigated by performing high-resolution photoemission spectroscopy (PES) measurements on high-quality stoichiometric single crystals of CeTe2. The Ce 3d XAS measurement indicates that the Ce ions are trivalent. The Ce 4f PES spectrum reveals two-peak structures with the Ce 4f bulk hybridization peak located around 0.8 eV below EF. The high-resolution, high-energy, bulk-sensitive PES study of CeTe2 provides evidence for a metallic density of states near EF. The carriers near EF consist mainly of Ce 5d and Te(1) 5p states, while the contribution from the Ce 4f and Te(2) 5p states is negligible. This finding agrees with the CDW instability in the Te(1) sheets.

AB - The electronic structure of CeTe2 has been investigated by performing high-resolution photoemission spectroscopy (PES) measurements on high-quality stoichiometric single crystals of CeTe2. The Ce 3d XAS measurement indicates that the Ce ions are trivalent. The Ce 4f PES spectrum reveals two-peak structures with the Ce 4f bulk hybridization peak located around 0.8 eV below EF. The high-resolution, high-energy, bulk-sensitive PES study of CeTe2 provides evidence for a metallic density of states near EF. The carriers near EF consist mainly of Ce 5d and Te(1) 5p states, while the contribution from the Ce 4f and Te(2) 5p states is negligible. This finding agrees with the CDW instability in the Te(1) sheets.

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U2 - 10.1088/0953-8984/16/50/007

DO - 10.1088/0953-8984/16/50/007

M3 - Article

AN - SCOPUS:11144269795

SN - 0953-8984

VL - 16

SP - 9163

EP - 9168

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 50

ER -

Photoemission study of carriers and Ce 4f spectral weight in CeTe ₂

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