TY - JOUR
T1 - Quasiparticles in the superconducting state of Bi2 Sr2 CaCuO8 + δ
AU - Kaminski, A.
AU - Mesot, J.
AU - Fretwell, H.
AU - Campuzano, J. C.
AU - Norman, M. R.
AU - Randeria, M.
AU - Ding, H.
AU - Sato, T.
AU - Takahashi, T.
AU - Mochiku, T.
AU - Kadowaki, K.
AU - Hoechst, H.
PY - 2000
Y1 - 2000
N2 - Recent improvements in momentum resolution lead to qualitatively new angle-resolved photoemission spectroscopy results on the spectra of Bi2 Sr2 CaCuO8 + δ (Bi2212) along the (π, π) direction, where there is a node in the superconducting gap. We now see the intrinsic line shape, which indicates the presence of true quasiparticles at all Fermi momenta in the superconducting state, and lack thereof in the normal state. The region of momentum space probed here is relevant for charge transport, motivating a comparison of our results to conductivity measurements by infrared reflectivity.
AB - Recent improvements in momentum resolution lead to qualitatively new angle-resolved photoemission spectroscopy results on the spectra of Bi2 Sr2 CaCuO8 + δ (Bi2212) along the (π, π) direction, where there is a node in the superconducting gap. We now see the intrinsic line shape, which indicates the presence of true quasiparticles at all Fermi momenta in the superconducting state, and lack thereof in the normal state. The region of momentum space probed here is relevant for charge transport, motivating a comparison of our results to conductivity measurements by infrared reflectivity.
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U2 - 10.1103/PhysRevLett.84.1788
DO - 10.1103/PhysRevLett.84.1788
M3 - Article
AN - SCOPUS:0000236322
VL - 84
SP - 1788
EP - 1791
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
ER -