Energy scale directly related to superconductivity in high-Tc cuprates: Universality from the temperature-dependent angle-resolved photoemission of Bi2Sr2Ca2Cu3O10+δ
Shin-ichiro Ideta, Teppei Yoshida, Atsushi Fujimori, Hiroaki Anzai, Taisuke Fujita, Akihiro Ino, Masashi Arita, Hirohumi Namatame, Masaki Taniguchi, Zhi-Xun Shen, Kenichi Takashima, Kenji Kojima, Shin-ichi Uchida
DOI 10.1103/PhysRevB.85.104515 · Physical Review B
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Abstract
We have performed a temperature-dependent angle-resolved photoemission spectroscopy (ARPES) study of the trilayer high-Tc cuprate superconductor (HTSC) Bi2Sr2Ca2Cu3O10+δ (Bi2223), and have shown that the Tc (=110 K) and “effective” superconducting gap Δsc defined at the end point of the Fermi arc follow the relationship 2Δsc≈4kBTc. Combining this result with previous ARPES results on single- and double-layer cuprates, we show that the relationship 2Δsc≈4kBTc holds for various HTSCs.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu3O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 110 | Pressure not reported | unknown |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2CuO6+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Ba2Ca3Cu4O8F2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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