Superconductivity at 32 K in single-crystalline RbxFe2−ySe2
A. F. Wang, J. J. Ying, Y. J. Yan, R. H. Liu, X. G. Luo, Z. Y. Li, X. F. Wang, M. Zhang, G. J. Ye, P. Cheng, Z. J. Xiang, X. H. Chen
DOI 10.1103/PhysRevB.83.060512 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We successfully grew the high-quality single crystal of Rb0.88Fe1.81Se2, which shows a clear superconducting transition in magnetic susceptibility and electrical resistivity. Resistivity shows the onset superconducting transition Tc at 32.1 K and zero resistivity at 30 K. From the low-temperature iso-magnetic-field magnetoresistance, the large upper critical field Hc2(0) has been estimated to be as high as 180 T for the field applied within the ab plane and 59 T for the field applied along the c axis. The anisotropy Hc2ab(0)/Hc2c(0) is around 3.0, lying right between those observed in KxFe2Se2 and CsxFe2Se2.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Rb0.88Fe1.81Se2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 32.1 | Pressure not reported | onset |
| Rb0.88Fe1.81Se2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | zero_resistance |
| Rb0.88Fe1.81Se2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30.6 | Pressure not reported | onset |
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure unresolved | unknown |
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37 | 4.5 GPa | onset |
| KxFe2Se2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure unresolved | unknown |
| CsxFe2Se2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 27 | Pressure unresolved | onset |
Similar papers
Phase relations in KxFe2−ySe2 and the structure of superconducting KxFe2Se2 via high-resolution synchrotron diffraction
similarity 0.97Daniel P. Shoemaker et al.
Source status unknown — claims are unverified
Superconductivity at Tc∼14 K in single-crystalline FeTe0.61Se0.39
similarity 0.96T. Taen et al.
Source status unknown — claims are unverified
High-pressure study of superconducting and nonsuperconducting single crystals of the same nominal composition Rb0.8Fe2Se2
similarity 0.96M. Gooch et al.
Source status unknown — claims are unverified
Bulk Superconductivity and Role of Fluctuations in the Iron-Based Superconductor FeSe at High Pressures
similarity 0.96Elena Gati et al.
Source status unknown — claims are unverified
Robustness of superconducting properties to transition metal substitution and impurity phases in Fe1−xVxSe
similarity 0.96Franziska K. K. Kirschner et al.
Source status unknown — claims are unverified
Local structure response of phase separation and iron-vacancy order in KxFe2−ySe2 superconductor
similarity 0.96A. Iadecola et al.
Source status unknown — claims are unverified