Superconducting gap, pseudogap, and fermi surface of Bi2201: high energy- and momentum-resolution photoemission study

T. Sato, Y. Naitoh, T. Kamiyama, T. Takahashi, Takayoshi Yokoya, J. Mesot, A. Kaminski, H. Fretwell, J. C. Campuzano, H. Ding, I. Chong, T. Terashima, M. Takano, K. Kadowaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have performed a systematic high energy (7-11 meV) and momentum (0.01 angstrom-1) resolution angle-resolved photoemission spectroscopy (ARPES) on superstructure-free Bi1.80Pb0.38Sr2.01CuO6-δ with various dopings. All the samples from overdoped Tc = 0K to underdoped Tc = 18K possess a large hole-like Fermi surface centered at X point, whose volume shows a systematic evolution with doping. The superconducting gap exhibits a dx(2)-y(2)-like anisotropy with a typical gap value of 10-15 meV. By comparing with Bi2Sr2CaCu2O8, we found that the size of superconducting gap and the ARPES spectral feature near EF are well scaled with the maximum Tc (Tcmax). This suggests that the superconducting properties are characterized by Tcmax irrespective of the number of CuO2 layers or the structural modulation in BiO layer.

Original languageEnglish
JournalPhysica C: Superconductivity and its Applications
Volume341-348
DOIs
Publication statusPublished - Nov 2000
Externally publishedYes

Fingerprint

Fermi surface
Photoemission
Photoelectron spectroscopy
Fermi surfaces
Momentum
photoelectric emission
Doping (additives)
momentum
Anisotropy
Modulation
spectroscopy
energy
modulation
anisotropy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Superconducting gap, pseudogap, and fermi surface of Bi2201 : high energy- and momentum-resolution photoemission study. / Sato, T.; Naitoh, Y.; Kamiyama, T.; Takahashi, T.; Yokoya, Takayoshi; Mesot, J.; Kaminski, A.; Fretwell, H.; Campuzano, J. C.; Ding, H.; Chong, I.; Terashima, T.; Takano, M.; Kadowaki, K.

In: Physica C: Superconductivity and its Applications, Vol. 341-348, 11.2000.

Research output: Contribution to journalArticle

Sato, T, Naitoh, Y, Kamiyama, T, Takahashi, T, Yokoya, T, Mesot, J, Kaminski, A, Fretwell, H, Campuzano, JC, Ding, H, Chong, I, Terashima, T, Takano, M & Kadowaki, K 2000, 'Superconducting gap, pseudogap, and fermi surface of Bi2201: high energy- and momentum-resolution photoemission study', Physica C: Superconductivity and its Applications, vol. 341-348. https://doi.org/10.1016/S0921-4534(00)01099-6
Sato, T. ; Naitoh, Y. ; Kamiyama, T. ; Takahashi, T. ; Yokoya, Takayoshi ; Mesot, J. ; Kaminski, A. ; Fretwell, H. ; Campuzano, J. C. ; Ding, H. ; Chong, I. ; Terashima, T. ; Takano, M. ; Kadowaki, K. / Superconducting gap, pseudogap, and fermi surface of Bi2201 : high energy- and momentum-resolution photoemission study. In: Physica C: Superconductivity and its Applications. 2000 ; Vol. 341-348.
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