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 language | English |
|---|---|
| Pages (from-to) | 840-843 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 83 |
| Issue number | 4 |
| Publication status | Published - Jul 26 1999 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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 journal › Article
}
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 -