High-resolution angle-resolved photoemission study of impurity-substituted Bi2Sr2CaCu2O8+δ;

K. Terashima; H. Matsui; T. Sato; T. Takahashi; T. Yamamoto; K. Kadowaki

doi:10.1016/j.physb.2004.06.029

High-resolution angle-resolved photoemission study of impurity-substituted Bi₂Sr₂CaCu₂O_8+δ;

K. Terashima, H. Matsui, T. Sato, T. Takahashi, T. Yamamoto, K. Kadowaki

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) of Co-, Ni-, and Zn-substituted Bi₂Sr₂CaCu ₂O_8+δ (Bi2212) to study the impurity effect on the electronic structure. In all compounds, we observed a remarkable suppression of the intensity of coherent peak around (π, 0) point at the superconducting state, consistent with the decrease in the superfluid density. By quantitatively analyzing ARPES lineshape, we found that the weight of the coherent peak well scales with T_c among substituted and unsubstituted Bi-family high-T_c superconductors exept for Zn-substituted Bi2212.

Original language	English
Pages (from-to)	280-282
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	351
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physb.2004.06.029
Publication status	Published - 2004 Sep 15

Keywords

ARPES
Impurity
Superconductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Terashima, K., Matsui, H., Sato, T., Takahashi, T., Yamamoto, T., & Kadowaki, K. (2004). High-resolution angle-resolved photoemission study of impurity-substituted Bi₂Sr₂CaCu₂O_8+δ; Physica B: Condensed Matter, 351(3-4), 280-282. https://doi.org/10.1016/j.physb.2004.06.029

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AU - Terashima, K.

AU - Matsui, H.

AU - Sato, T.

AU - Takahashi, T.

AU - Yamamoto, T.

AU - Kadowaki, K.

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AB - We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) of Co-, Ni-, and Zn-substituted Bi2Sr2CaCu 2O8+δ (Bi2212) to study the impurity effect on the electronic structure. In all compounds, we observed a remarkable suppression of the intensity of coherent peak around (π, 0) point at the superconducting state, consistent with the decrease in the superfluid density. By quantitatively analyzing ARPES lineshape, we found that the weight of the coherent peak well scales with Tc among substituted and unsubstituted Bi-family high-Tc superconductors exept for Zn-substituted Bi2212.

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