Fermi arc in the superconducting state of impurity-doped Bi2 Sr2 CaCu2 O8

T. Sato; Kensei Terashima; K. Nakayama; S. Souma; T. Takahashi; T. Yamamoto; K. Kadowaki

doi:10.1103/PhysRevB.78.100502

Fermi arc in the superconducting state of impurity-doped Bi2 Sr2 CaCu2 O8

T. Sato, Kensei Terashima, K. Nakayama, S. Souma, T. Takahashi, T. Yamamoto, K. Kadowaki

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

We have performed ultrahigh energy- and momentum-resolved angle-resolved photoemission spectroscopy of impurity-doped Bi2 Sr2 CaCu2 O8. We found that the point node of the superconducting gap near the (π/2,π/2) point in a pristine sample gradually evolves into a small gapless Fermi arc upon Zn or Ni doping. The shape of impurity-induced density of states inside the superconducting gap shows a marked difference between Zn and Ni doping, demonstrating that the low-energy excitation properties are strongly sensitive to the character of impurities.

Original language	English
Article number	100502
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.78.100502
Publication status	Published - Sep 4 2008
Externally published	Yes

Fingerprint

ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Sato, T., Terashima, K., Nakayama, K., Souma, S., Takahashi, T., Yamamoto, T., & Kadowaki, K. (2008). Fermi arc in the superconducting state of impurity-doped Bi2 Sr2 CaCu2 O8. Physical Review B - Condensed Matter and Materials Physics, 78(10), [100502]. https://doi.org/10.1103/PhysRevB.78.100502

@article{f4b7b54abdef467997b2b83dce4bb619,

title = "Fermi arc in the superconducting state of impurity-doped Bi2 Sr2 CaCu2 O8",

abstract = "We have performed ultrahigh energy- and momentum-resolved angle-resolved photoemission spectroscopy of impurity-doped Bi2 Sr2 CaCu2 O8. We found that the point node of the superconducting gap near the (π/2,π/2) point in a pristine sample gradually evolves into a small gapless Fermi arc upon Zn or Ni doping. The shape of impurity-induced density of states inside the superconducting gap shows a marked difference between Zn and Ni doping, demonstrating that the low-energy excitation properties are strongly sensitive to the character of impurities.",

author = "T. Sato and Kensei Terashima and K. Nakayama and S. Souma and T. Takahashi and T. Yamamoto and K. Kadowaki",

year = "2008",

month = sep

day = "4",

doi = "10.1103/PhysRevB.78.100502",

language = "English",

volume = "78",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "10",

}

TY - JOUR

T1 - Fermi arc in the superconducting state of impurity-doped Bi2 Sr2 CaCu2 O8

AU - Sato, T.

AU - Terashima, Kensei

AU - Nakayama, K.

AU - Souma, S.

AU - Takahashi, T.

AU - Yamamoto, T.

AU - Kadowaki, K.

PY - 2008/9/4

Y1 - 2008/9/4

N2 - We have performed ultrahigh energy- and momentum-resolved angle-resolved photoemission spectroscopy of impurity-doped Bi2 Sr2 CaCu2 O8. We found that the point node of the superconducting gap near the (π/2,π/2) point in a pristine sample gradually evolves into a small gapless Fermi arc upon Zn or Ni doping. The shape of impurity-induced density of states inside the superconducting gap shows a marked difference between Zn and Ni doping, demonstrating that the low-energy excitation properties are strongly sensitive to the character of impurities.

AB - We have performed ultrahigh energy- and momentum-resolved angle-resolved photoemission spectroscopy of impurity-doped Bi2 Sr2 CaCu2 O8. We found that the point node of the superconducting gap near the (π/2,π/2) point in a pristine sample gradually evolves into a small gapless Fermi arc upon Zn or Ni doping. The shape of impurity-induced density of states inside the superconducting gap shows a marked difference between Zn and Ni doping, demonstrating that the low-energy excitation properties are strongly sensitive to the character of impurities.

UR - http://www.scopus.com/inward/record.url?scp=51749108376&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51749108376&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.78.100502

DO - 10.1103/PhysRevB.78.100502

M3 - Article

AN - SCOPUS:51749108376

VL - 78

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 10

M1 - 100502

ER -

Access to Document

10.1103/PhysRevB.78.100502