Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 815-818 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 341-348 |
| Issue number | PART 3 |
| DOIs | |
| Publication status | Published - Jan 1 2000 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Sato, T., Naitoh, Y., Kamiyama, T., Takahashi, T., Yokoya, T., Yamada, K., Endoh, Y., & Kadowaki, K. (2000). Small and large pseudogaps in high- Tc superconductors observed by ultrahigh-resolution photoemission spectroscopy. Physica C: Superconductivity and its applications, 341-348(PART 3), 815-818. https://doi.org/10.1016/S0921-4534(00)00702-4