TY - JOUR
T1 - Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy
AU - Sato, T.
AU - Naitoh, Y.
AU - Kamiyama, T.
AU - Takahashi, T.
AU - Yokoya, T.
AU - Yamada, K.
AU - Endoh, Y.
AU - Kadowaki, K.
N1 - Funding Information:
This work was supported by grants from the CREST (Core Research for Evolutional Science and Technology Corporation) of JST, the Japan Society for Promotion of Science (JSPS), and the Ministry of Education, Science and Culture of Japan. TS thanks the JSPS for financial support.
PY - 2000
Y1 - 2000
N2 - Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.
AB - Two different (small and large) pseudogaps have been observed by ultrahigh-resolution photoeraission spectroscopy in optimally doped Bi2Sr2CaCu2O8 and La1.85Sr0.15GuO4. The small pseudogap is smoothly connected from the superconducting gap and closes slightly above Tc, while the large one appears as a remarkable depletion of the density of states in a wider energy range near EF and persists far above Tc. The small pseudogap is likely associated with pairing and the large one is ascribed to the development of antiferromagnetic correlation.
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U2 - 10.1016/S0921-4534(00)00702-4
DO - 10.1016/S0921-4534(00)00702-4
M3 - Article
AN - SCOPUS:0343832822
SN - 0921-4534
VL - 341-348
SP - 815
EP - 818
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 3
ER -