Doping Dependence of an [Formula presented]-Type Cuprate Superconductor Investigated by Angle-Resolved Photoemission Spectroscopy

N. P. Armitage, F. Ronning, D. H. Lu, C. Kim, A. Damascelli, K. M. Shen, D. L. Feng, H. Eisaki, Z. X. Shen, P. K. Mang, N. Kaneko, M. Greven, Y. Onose, Y. Taguchi, Y. Tokura

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Abstract

We present an angle-resolved photoemission doping dependence study of the [Formula presented]-type cuprate superconductor [Formula presented], from the half-filled Mott insulator to the [Formula presented] superconductor. In [Formula presented], we reveal the charge-transfer band for the first time. As electrons are doped into the system, this feature’s intensity decreases with the concomitant formation of near- [Formula presented] spectral weight. At low doping, the Fermi surface is an electron-pocket (with volume [Formula presented]) centered at [Formula presented]. Further doping leads to the creation of a new holelike Fermi surface (volume [Formula presented]) centered at [Formula presented]. These findings shed light on the Mott gap, its doping evolution, as well as the anomalous transport properties of the [Formula presented]-type cuprates.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number25
DOIs
Publication statusPublished - 2002 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Armitage, N. P., Ronning, F., Lu, D. H., Kim, C., Damascelli, A., Shen, K. M., Feng, D. L., Eisaki, H., Shen, Z. X., Mang, P. K., Kaneko, N., Greven, M., Onose, Y., Taguchi, Y., & Tokura, Y. (2002). Doping Dependence of an [Formula presented]-Type Cuprate Superconductor Investigated by Angle-Resolved Photoemission Spectroscopy. Physical Review Letters, 88(25). https://doi.org/10.1103/PhysRevLett.88.257001