TY - JOUR
T1 - Definitive experimental evidence for two-band superconductivity in [formula presented]
AU - Tsuda, S.
AU - Yokoya, T.
AU - Takano, Y.
AU - Kito, H.
AU - Matsushita, A.
AU - Yin, F.
AU - Itoh, J.
AU - Harima, H.
AU - Shin, S.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - The superconducting-gap of [Formula presented] has been studied by high-resolution angle-resolved photoemission spectroscopy. The results show that superconducting gaps with values of 5.5 and 2.2 meV open on the [Formula presented] band and the [Formula presented] band, respectively, but both the gaps close at the bulk transition temperature, providing a definitive experimental evidence for the two-band superconductivity with strong interband pairing interaction in [Formula presented]. The experiments validate the role of [Formula presented]-dependent electron-phonon coupling as the origin of multiple-gap superconductivity as well as the high transition temperature of [Formula presented].
AB - The superconducting-gap of [Formula presented] has been studied by high-resolution angle-resolved photoemission spectroscopy. The results show that superconducting gaps with values of 5.5 and 2.2 meV open on the [Formula presented] band and the [Formula presented] band, respectively, but both the gaps close at the bulk transition temperature, providing a definitive experimental evidence for the two-band superconductivity with strong interband pairing interaction in [Formula presented]. The experiments validate the role of [Formula presented]-dependent electron-phonon coupling as the origin of multiple-gap superconductivity as well as the high transition temperature of [Formula presented].
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U2 - 10.1103/PhysRevLett.91.127001
DO - 10.1103/PhysRevLett.91.127001
M3 - Article
AN - SCOPUS:85038314380
SN - 0031-9007
VL - 91
JO - Physical Review Letters
JF - Physical Review Letters
IS - 12
ER -