Pressure dependence of the superconducting and magnetic transition temperatures in Sr2VO3FeAs
S. Holenstein, F. Hummel, Z. Guguchia, S. Kamusella, N. Barbero, H. Ogino, Z. Shermadini, R. Khasanov, A. Amato, T. Shiroka, H.-H. Klauss, E. Morenzoni, D. Johrendt, H. Luetkens
DOI 10.1103/PhysRevB.104.104507 · Physical Review B
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Abstract
We report muon spin rotation (μSR) and magnetization measurements on superconducting Sr2VO3FeAs under pressure. At ambient pressure, Sr2VO3FeAs undergoes an antiferromagnetic transition of the V moments at TN and becomes superconducting at Tc<TN. As a function of pressure, TN initially decreases while Tc increases. Surprisingly, once TN≈Tc at 0.6 GPa, TN reverses its trend and increases together with Tc, which might indicate a cooperative coupling of the superconducting and the magnetic order.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2VO3FeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure unresolved | onset |
| Sr2VO3FeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37 | Pressure unresolved | unknown |
| Sr2VO3FeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 46 | 4 GPa | unknown |
| Sr2VO3FeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 26.5 | Pressure unresolved | onset |
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