Overdoped regime of the high-Tc superconductor HgBa2CuO4+δ and the relation between normal and superconducting carrier densities
R. Puźniak, R. Usami, H. Yamauchi
DOI 10.1103/PhysRevB.53.86 · Physical Review B
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Abstract
We have determined the ab-plane and c-axis components of penetration depth, λab and λc, and coherence length, ξab and ξc, for optimally doped (Tc=96 K) and overdoped HgBa2CuO4+δ (Tc=52 K). ξab, ξc, and λab increase, whereas λc decreases for the overdoped material in comparison to the optimally doped materials. Analysis of the data reveals that the increase of λab is caused by a suppression of the superconducting carrier density ns, and not an enhancement of the in-plane effective mass. The decrease of λc originates from an overcompensation in the suppression of ns by a strongly reduced effective mass along the c axis. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| HgBa2CuO4+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 96 | Pressure not reported | unknown |
| HgBa2CuO4+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 52 | 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 |
| YBa2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y2Ba4Cu7O15 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu4O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| HgBa2Ca2Cu3O8+δ 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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