TY - JOUR
T1 - Gap inhomogeneity, phase separation and a pseudogap in Bi2Sr2CaCu2O8+δ
AU - Matsuda, Azusa
AU - Fujii, Takenori
AU - Watanabe, Takao
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/5
Y1 - 2003/5
N2 - Gap inhomogeneity in Bi2Sr2CaCu2O8 has been studied by low-temperature STM. We found a systematic relation between the local gap energy and local background density of states. A model analysis of the dip-hump structure gave evidence of in-plane charge inhomogeneity. The temperature/doping dependences of the pattern shape of inhomogeneity as well as the gap distribution function were measured. We could identify the signature of phase separation into the superconducting and pseudogapped phases as the appearance of a double-peak structure in the distribution function.
AB - Gap inhomogeneity in Bi2Sr2CaCu2O8 has been studied by low-temperature STM. We found a systematic relation between the local gap energy and local background density of states. A model analysis of the dip-hump structure gave evidence of in-plane charge inhomogeneity. The temperature/doping dependences of the pattern shape of inhomogeneity as well as the gap distribution function were measured. We could identify the signature of phase separation into the superconducting and pseudogapped phases as the appearance of a double-peak structure in the distribution function.
KW - BiSrCaCuO
KW - Gap inhomogeneity
KW - Pseudoga p
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U2 - 10.1016/S0921-4534(02)02378-X
DO - 10.1016/S0921-4534(02)02378-X
M3 - Conference article
AN - SCOPUS:0037513220
VL - 388-389
SP - 207
EP - 208
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
T2 - proceedings of the 23rd international conference on low temper
Y2 - 20 August 2002 through 27 August 2002
ER -