First-order vortex phase transition and anisotropic resistivities in the trilayered Hg(Re)Ba2Ca2Cu3Oy superconductor
S. Horii, S. Ueda, J. Shimoyama, K. Kishio
DOI 10.1103/PhysRevB.66.132506 · Physical Review B
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Abstract
We report observation of the first-order phase transition of vortex lattice in Hg(Re)Ba2Ca2Cu3Oy with critical temperature (Tc) over 100 K from in-plane magnetoresistance. The behaviors of Hpt for high-Tc superconductors could be universally understood in terms of a thermally induced sublimation model in wide ranges of the anisotropy factor (γ2) and Tc, and in multilayered systems including triple CuO2 layers. The estimated value of γ2 was extremely small (∼500) in spite of possessing large superconducting layer spacing, which is consistent with the resistivity anisotropy (ρc/ρab) and is comparable with that in nearly optimally doped (La1−xSrx)2CuO4.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Hg0.84Re0.16Ba2Ca2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 130 | Pressure not reported | onset |
| HgBa2Ca2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 135 | Pressure not reported | unknown |
| YBa2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.9 | Pressure not reported | unknown |
| Bi2Sr2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 84.2 | Pressure not reported | unknown |
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