Unconventional metallic behavior and superconductivity in the K-Mo-O system
L. M. S. Alves, V. I. Damasceno, C. A. M. dos Santos, A. D. Bortolozo, P. A. Suzuki, H. J. Izario Filho, A. J. S. Machado, Z. Fisk
DOI 10.1103/PhysRevB.81.174532 · Physical Review B
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Abstract
Transport properties and magnetization measurements of the KxMoO2−δ (0≤x≤0.25) compound are reported. The compound crystallizes in the oxygen deficient MoO2 monoclinic structure with potassium atoms occupying interstitial positions. An unconventional metallic behavior with power-law temperature dependence is related to a magnetic ordering. Superconducting transition with small volume fraction is also observed near 7 K for a sample with low potassium composition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| K0.05MoO1.63 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.5 | Pressure not reported | onset |
| K0.05MoO1.63 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.25 | Pressure not reported | unknown |
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