Fully gapped single-particle excitations in lightly doped cuprates

K. M. Shen; T. Yoshida; D. H. Lu; F. Ronning; N. P. Armitage; W. S. Lee; X. J. Zhou; A. Damascelli; D. L. Feng; N. J.C. Ingle; H. Eisaki; Y. Kohsaka; H. Takagi; T. Kakeshita; S. Uchida; P. K. Mang; M. Greven; Y. Onose; Y. Taguchi; Y. Tokura; Seiki Komiya; Yoichi Ando; M. Azuma; M. Takano; A. Fujimori; Z. X. Shen

doi:10.1103/PhysRevB.69.054503

Fully gapped single-particle excitations in lightly doped cuprates

K. M. Shen, T. Yoshida, D. H. Lu, F. Ronning, N. P. Armitage, W. S. Lee, X. J. Zhou, A. Damascelli, D. L. Feng, N. J.C. Ingle, H. Eisaki, Y. Kohsaka, H. Takagi, T. Kakeshita, S. Uchida, P. K. Mang, M. Greven, Y. Onose, Y. Taguchi, Y. TokuraSeiki Komiya, Yoichi Ando, M. Azuma, M. Takano, A. Fujimori, Z. X. Shen

IMR - Materials Design Division

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44 Citations (Scopus)

Abstract

The low-energy excitations of the lightly doped cuprates were studied by angle-resolved photoemission spectroscopy. A finite gap was measured over the entire Brillouin zone, including along the d_x²-y² nodal line. This effect was observed to be generic to the normal states of numerous cuprates, including hole-doped La_2-xSr_xCuO₄ and Ca_2-xNa_xCuO₂Cl₂ and electron-doped Nd_2-xCe_xCuO₄. In all compounds, the gap appears to close with increasing carrier doping. We consider various scenarios to explain our results, including the possible effects of chemical disorder, electronic inhomogeneity, and a competing phase.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	69
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.69.054503
Publication status	Published - 2004 Feb 17

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Shen, K. M., Yoshida, T., Lu, D. H., Ronning, F., Armitage, N. P., Lee, W. S., Zhou, X. J., Damascelli, A., Feng, D. L., Ingle, N. J. C., Eisaki, H., Kohsaka, Y., Takagi, H., Kakeshita, T., Uchida, S., Mang, P. K., Greven, M., Onose, Y., Taguchi, Y., ... Shen, Z. X. (2004). Fully gapped single-particle excitations in lightly doped cuprates. Physical Review B - Condensed Matter and Materials Physics, 69(5). https://doi.org/10.1103/PhysRevB.69.054503

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title = "Fully gapped single-particle excitations in lightly doped cuprates",

abstract = "The low-energy excitations of the lightly doped cuprates were studied by angle-resolved photoemission spectroscopy. A finite gap was measured over the entire Brillouin zone, including along the dx2-y2 nodal line. This effect was observed to be generic to the normal states of numerous cuprates, including hole-doped La2-xSrxCuO4 and Ca2-xNaxCuO2Cl2 and electron-doped Nd2-xCexCuO4. In all compounds, the gap appears to close with increasing carrier doping. We consider various scenarios to explain our results, including the possible effects of chemical disorder, electronic inhomogeneity, and a competing phase.",

author = "Shen, {K. M.} and T. Yoshida and Lu, {D. H.} and F. Ronning and Armitage, {N. P.} and Lee, {W. S.} and Zhou, {X. J.} and A. Damascelli and Feng, {D. L.} and Ingle, {N. J.C.} and H. Eisaki and Y. Kohsaka and H. Takagi and T. Kakeshita and S. Uchida and Mang, {P. K.} and M. Greven and Y. Onose and Y. Taguchi and Y. Tokura and Seiki Komiya and Yoichi Ando and M. Azuma and M. Takano and A. Fujimori and Shen, {Z. X.}",

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doi = "10.1103/PhysRevB.69.054503",

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Shen, KM, Yoshida, T, Lu, DH, Ronning, F, Armitage, NP, Lee, WS, Zhou, XJ, Damascelli, A, Feng, DL, Ingle, NJC, Eisaki, H, Kohsaka, Y, Takagi, H, Kakeshita, T, Uchida, S, Mang, PK, Greven, M, Onose, Y, Taguchi, Y, Tokura, Y, Komiya, S, Ando, Y, Azuma, M, Takano, M, Fujimori, A & Shen, ZX 2004, 'Fully gapped single-particle excitations in lightly doped cuprates', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 5. https://doi.org/10.1103/PhysRevB.69.054503

TY - JOUR

T1 - Fully gapped single-particle excitations in lightly doped cuprates

AU - Shen, K. M.

AU - Yoshida, T.

AU - Lu, D. H.

AU - Ronning, F.

AU - Armitage, N. P.

AU - Lee, W. S.

AU - Zhou, X. J.

AU - Damascelli, A.

AU - Feng, D. L.

AU - Ingle, N. J.C.

AU - Eisaki, H.

AU - Kohsaka, Y.

AU - Takagi, H.

AU - Kakeshita, T.

AU - Uchida, S.

AU - Mang, P. K.

AU - Greven, M.

AU - Onose, Y.

AU - Taguchi, Y.

AU - Tokura, Y.

AU - Komiya, Seiki

AU - Ando, Yoichi

AU - Azuma, M.

AU - Takano, M.

AU - Fujimori, A.

AU - Shen, Z. X.

PY - 2004/2/17

Y1 - 2004/2/17

N2 - The low-energy excitations of the lightly doped cuprates were studied by angle-resolved photoemission spectroscopy. A finite gap was measured over the entire Brillouin zone, including along the dx2-y2 nodal line. This effect was observed to be generic to the normal states of numerous cuprates, including hole-doped La2-xSrxCuO4 and Ca2-xNaxCuO2Cl2 and electron-doped Nd2-xCexCuO4. In all compounds, the gap appears to close with increasing carrier doping. We consider various scenarios to explain our results, including the possible effects of chemical disorder, electronic inhomogeneity, and a competing phase.

AB - The low-energy excitations of the lightly doped cuprates were studied by angle-resolved photoemission spectroscopy. A finite gap was measured over the entire Brillouin zone, including along the dx2-y2 nodal line. This effect was observed to be generic to the normal states of numerous cuprates, including hole-doped La2-xSrxCuO4 and Ca2-xNaxCuO2Cl2 and electron-doped Nd2-xCexCuO4. In all compounds, the gap appears to close with increasing carrier doping. We consider various scenarios to explain our results, including the possible effects of chemical disorder, electronic inhomogeneity, and a competing phase.

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VL - 69

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

ER -

Fully gapped single-particle excitations in lightly doped cuprates

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