Suppression of superconductivity by antiferromagnetism in Tm2Fe3Si5
J. A. Gotaas, J. W. Lynn, R. N. Shelton, P. Klavins, H. F. Braun
DOI 10.1103/PhysRevB.36.7277 · Physical Review B
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Abstract
Powder neutron-diffraction experiments at pressures up to 8.2 kbar and temperatures down to 0.3 K have been performed on the antiferromagnetic ternary compound Tm2Fe3Si5. For pressures between 2 and 21 kbar, this system becomes superconducting at Tc1>TN, with a subsequent reentrance to the normal conducting state at Tc2≈TN. Our measurements demonstrate that the antiferromagnetic structure is unchanged under pressure, with no evidence for a ferromagnetic component at any pressure that would compete with the superconducting phase. This is the first experimental observation of the quenching of superconductivity by a purely antiferromagnetic state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tm2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | 0.82 GPa | onset |
| Tm2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | 0.82 GPa | onset |
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