Angular dependence of upper critical field for high-temperature superconductors
Kenji Takanaka, Lui Sakai, Hiroaki Matueda
DOI 10.1103/PhysRevB.66.012514 · Physical Review B
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Abstract
Including Fermi surface anisotropy in addition to the anisotropy of pairing states, we recalculate the angular dependence of the upper critical field Hc2(θ) intending to explain its in-plane anisotropy for the high-temperature superconductors. The results show that two anisotropies arising from different origins compete and the angular dependence of the fourfold symmetry for Hc2(θ) is not unique for all the high-temperature superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ca0.5La1.25Ba1.25Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.86Sr0.14CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pb2Sr2Ca0.38Cu3O8 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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