Superconducting gap anisotropy and quasiparticle interactions

A doping dependent photoemission study

J. Mesot, M. R. Norman, H. Ding, M. Randeria, J. C. Campuzano, A. Paramekanti, H. M. Fretwell, A. Kaminski, T. Takeuchi, Takayoshi Yokoya, T. Sato, T. Takahashi, T. Mochiku, K. Kadowaki

Research output: Contribution to journalArticle

263 Citations (Scopus)

Abstract

Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting quasiparticles is inadequate, and we estimate the magnitude and doping dependence of the Landau interaction parameter which renormalizes the linear T contribution to the superfluid density. Furthermore, although consistent with d-wave symmetry, the gap with underdoping cannot be fit by the simple coskx - cosky form, which suggests an increasing importance of long range interactions as the insulator is approached.

Original languageEnglish
Pages (from-to)840-843
Number of pages4
JournalPhysical Review Letters
Volume83
Issue number4
Publication statusPublished - Jul 26 1999
Externally publishedYes

Fingerprint

photoelectric emission
anisotropy
penetration
insulators
interactions
symmetry
estimates
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mesot, J., Norman, M. R., Ding, H., Randeria, M., Campuzano, J. C., Paramekanti, A., ... Kadowaki, K. (1999). Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study. Physical Review Letters, 83(4), 840-843.

Superconducting gap anisotropy and quasiparticle interactions : A doping dependent photoemission study. / Mesot, J.; Norman, M. R.; Ding, H.; Randeria, M.; Campuzano, J. C.; Paramekanti, A.; Fretwell, H. M.; Kaminski, A.; Takeuchi, T.; Yokoya, Takayoshi; Sato, T.; Takahashi, T.; Mochiku, T.; Kadowaki, K.

In: Physical Review Letters, Vol. 83, No. 4, 26.07.1999, p. 840-843.

Research output: Contribution to journalArticle

Mesot, J, Norman, MR, Ding, H, Randeria, M, Campuzano, JC, Paramekanti, A, Fretwell, HM, Kaminski, A, Takeuchi, T, Yokoya, T, Sato, T, Takahashi, T, Mochiku, T & Kadowaki, K 1999, 'Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study', Physical Review Letters, vol. 83, no. 4, pp. 840-843.
Mesot J, Norman MR, Ding H, Randeria M, Campuzano JC, Paramekanti A et al. Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study. Physical Review Letters. 1999 Jul 26;83(4):840-843.
Mesot, J. ; Norman, M. R. ; Ding, H. ; Randeria, M. ; Campuzano, J. C. ; Paramekanti, A. ; Fretwell, H. M. ; Kaminski, A. ; Takeuchi, T. ; Yokoya, Takayoshi ; Sato, T. ; Takahashi, T. ; Mochiku, T. ; Kadowaki, K. / Superconducting gap anisotropy and quasiparticle interactions : A doping dependent photoemission study. In: Physical Review Letters. 1999 ; Vol. 83, No. 4. pp. 840-843.
@article{cc170b30a9d94eddaa9828d1800e1d8d,
title = "Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study",
abstract = "Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting quasiparticles is inadequate, and we estimate the magnitude and doping dependence of the Landau interaction parameter which renormalizes the linear T contribution to the superfluid density. Furthermore, although consistent with d-wave symmetry, the gap with underdoping cannot be fit by the simple coskx - cosky form, which suggests an increasing importance of long range interactions as the insulator is approached.",
author = "J. Mesot and Norman, {M. R.} and H. Ding and M. Randeria and Campuzano, {J. C.} and A. Paramekanti and Fretwell, {H. M.} and A. Kaminski and T. Takeuchi and Takayoshi Yokoya and T. Sato and T. Takahashi and T. Mochiku and K. Kadowaki",
year = "1999",
month = "7",
day = "26",
language = "English",
volume = "83",
pages = "840--843",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",

}

TY - JOUR

T1 - Superconducting gap anisotropy and quasiparticle interactions

T2 - A doping dependent photoemission study

AU - Mesot, J.

AU - Norman, M. R.

AU - Ding, H.

AU - Randeria, M.

AU - Campuzano, J. C.

AU - Paramekanti, A.

AU - Fretwell, H. M.

AU - Kaminski, A.

AU - Takeuchi, T.

AU - Yokoya, Takayoshi

AU - Sato, T.

AU - Takahashi, T.

AU - Mochiku, T.

AU - Kadowaki, K.

PY - 1999/7/26

Y1 - 1999/7/26

N2 - Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting quasiparticles is inadequate, and we estimate the magnitude and doping dependence of the Landau interaction parameter which renormalizes the linear T contribution to the superfluid density. Furthermore, although consistent with d-wave symmetry, the gap with underdoping cannot be fit by the simple coskx - cosky form, which suggests an increasing importance of long range interactions as the insulator is approached.

AB - Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting quasiparticles is inadequate, and we estimate the magnitude and doping dependence of the Landau interaction parameter which renormalizes the linear T contribution to the superfluid density. Furthermore, although consistent with d-wave symmetry, the gap with underdoping cannot be fit by the simple coskx - cosky form, which suggests an increasing importance of long range interactions as the insulator is approached.

UR - http://www.scopus.com/inward/record.url?scp=0342763849&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0342763849&partnerID=8YFLogxK

M3 - Article

VL - 83

SP - 840

EP - 843

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 4

ER -