Metallic Behavior of Lightly Doped [Formula presented] with a Fermi Surface Forming an Arc

T. Yoshida, X. J. Zhou, T. Sasagawa, W. L. Yang, P. V. Bogdanov, A. Lanzara, Z. Hussain, T. Mizokawa, A. Fujimori, H. Eisaki, Z. X. Shen, T. Kakeshita, S. Uchida

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Abstract

Lightly doped [Formula presented] in the so-called insulating hase has been studied by angle-resolved photoemission spectroscopy. We have observed that a quasiparticle (QP) peak crosses the Fermi level in the node direction of the [Formula presented]-wave superconducting gap, forming an arc of Fermi surface, which explains the metallic behavior at high temperatures of the lightly doped materials. The QP spectral weight of the arc smoothly increases with hole doping, which we attribute to the [Formula presented] behavior of the carrier number in the underdoped and lightly doped regions.

Original languageEnglish
JournalPhysical Review Letters
Volume91
Issue number2
DOIs
Publication statusPublished - 2003 Jul 8

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yoshida, T., Zhou, X. J., Sasagawa, T., Yang, W. L., Bogdanov, P. V., Lanzara, A., Hussain, Z., Mizokawa, T., Fujimori, A., Eisaki, H., Shen, Z. X., Kakeshita, T., & Uchida, S. (2003). Metallic Behavior of Lightly Doped [Formula presented] with a Fermi Surface Forming an Arc. Physical Review Letters, 91(2). https://doi.org/10.1103/PhysRevLett.91.027001