Evidence for a reentrant superconducting state in EuFe2As2 under pressure
C. F. Miclea, M. Nicklas, H. S. Jeevan, D. Kasinathan, Z. Hossain, H. Rosner, P. Gegenwart, C. Geibel, F. Steglich
DOI 10.1103/PhysRevB.79.212509 · 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 studied the temperature-pressure phase diagram of EuFe2As2 by electrical resistivity measurements. The spin-density-wave transition at T0 associated with the FeAs-layers is continuously suppressed with increasing pressure, while the antiferromagnetic ordering temperature of the Eu2+ moments seems to be nearly pressure independent up to 2.6 GPa. Above 2 GPa a sharp drop of the resistivity, ρ(T), indicates the onset of superconductivity at Tc≈29.5 K. Surprisingly, on further reducing the temperature, ρ(T) is increasing again and exhibiting a maximum caused by the ordering of the Eu2+ moments, a behavior which is reminiscent of reentrant superconductivity as it is observed in the ternary Chevrel phases or in the rare-earth nickel borocarbides.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| EuFe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 29.5 | 2 GPa | onset |
| EuFe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 29.5 | 2.03 GPa | onset |
| EuFe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 29.5 | 2.3 GPa | onset |
| K0.5Eu0.5Fe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
| HoMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| HoNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Crossover from ferromagnetic superconductor to superconducting ferromagnet in P-doped EuFe2(As1−xPx)2
similarity 0.97S. Yu. Grebenchuk et al.
Source status unknown — claims are unverified
Reentrant Superconducting Phase in Conical-Ferromagnet–Superconductor Nanostructures
similarity 0.95Chien-Te Wu et al.
Source status unknown — claims are unverified
Influence of spin-orbit scattering on the coexistence phase of the ferromagnetic superconductors ErRh4B4 and HoMo6S8
similarity 0.94L. N. Bulaevskii et al.
Source status unknown — claims are unverified
Spectroscopy of Magnetic Excitations in Magnetic Superconductors Using Vortex Motion
similarity 0.94L. N. Bulaevskii et al.
Source status unknown — claims are unverified
Coexistence of Eu antiferromagnetism and pressure-induced superconductivity in single-crystal EuFe2As2
similarity 0.94W. T. Jin et al.
Source status unknown — claims are unverified
Phenomenological Theory of Superconductivity and Magnetism in Ho1−xDyxNi2B2C
similarity 0.94Hyeonjin Doh et al.
Source status unknown — claims are unverified