TY - JOUR
T1 - Observation of band renormalization effects in hole-doped high-[formula presented] superconductors
AU - Sato, T.
AU - Matsui, H.
AU - Takahashi, T.
AU - Ding, H.
AU - Yang, H. B.
AU - Wang, S. C.
AU - Fujii, T.
AU - Watanabe, T.
AU - Matsuda, A.
AU - Terashima, T.
AU - Kadowaki, K.
PY - 2003
Y1 - 2003
N2 - We report a systematic high-resolution angle-resolved photoemission spectroscopy on high-[Formula presented] superconductors [Formula presented] ([Formula presented]) to study the origin of many-body interactions responsible for superconductivity. For [Formula presented] and 3, a sudden change in the energy dispersion, so called “kink”, becomes pronounced on approaching ([Formula presented]) in the superconducting state, while a kink appears only around the nodal direction in the normal state. For [Formula presented], the kink shows no significant temperature dependence even across [Formula presented]. This could suggest that the coupling of electrons with [Formula presented] magnetic mode is dominant in the superconducting state for multilayered cuprates, while the interactions at the normal state and that of single-layered cuprates have a different origin.
AB - We report a systematic high-resolution angle-resolved photoemission spectroscopy on high-[Formula presented] superconductors [Formula presented] ([Formula presented]) to study the origin of many-body interactions responsible for superconductivity. For [Formula presented] and 3, a sudden change in the energy dispersion, so called “kink”, becomes pronounced on approaching ([Formula presented]) in the superconducting state, while a kink appears only around the nodal direction in the normal state. For [Formula presented], the kink shows no significant temperature dependence even across [Formula presented]. This could suggest that the coupling of electrons with [Formula presented] magnetic mode is dominant in the superconducting state for multilayered cuprates, while the interactions at the normal state and that of single-layered cuprates have a different origin.
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U2 - 10.1103/PhysRevLett.91.157003
DO - 10.1103/PhysRevLett.91.157003
M3 - Article
AN - SCOPUS:79957499397
SN - 0031-9007
VL - 91
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
ER -