Superconducting gap in BaFe2(As1−xPx)2 from temperature-dependent transient optical reflectivity
A. Pogrebna, T. Mertelj, Z. R. Ye, D. L. Feng, D. Mihailovic
DOI 10.1103/PhysRevB.92.144503 · Physical Review B
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Abstract
Temperature and fluence dependence of the 1.55-eV optical transient reflectivity in BaFe2(As1−xPx)2 was measured and analyzed in the low and high excitation density limit. The effective magnitude of the superconducting gap of ∼5 meV obtained from the low-fluence-data bottleneck model fit is consistent with the angle-resolved photoemission spectroscopy results for the γ- and β−hole Fermi surfaces. The superconducting state nonthermal optical destruction energy was determined from the fluence dependent data. The planar optical destruction energy density scales well with Tc2 and is found to be similar in a number of different layered superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| BaFe2(As0.7P0.3)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | onset |
| BaFe2(As0.7P0.3)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | onset |
| Ba(Fe0.93Co0.07)2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 24 | Pressure not reported | unknown |
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