Magnetic and superconducting phase diagram of electron-doped Pr1−xLaCexCuO4
M. Fujita, T. Kubo, S. Kuroshima, T. Uefuji, K. Kawashima, K. Yamada, I. Watanabe, K. Nagamine
DOI 10.1103/PhysRevB.67.014514 · Physical Review B
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Abstract
We have investigated the magnetism and the superconductivity of the electron-doped Pr1−xLaCexCuO4 by means of zero-field muon spin rotation/relaxation and magnetic susceptibility measurements. At low temperatures, a well-defined muon spin rotation free from the effect of rare-earth moments was observed for samples with x<~0.08 corresponding to the antiferromagnetic (AF) order of Cu spins. Bulk superconductivity was identified in a wide Ce concentration range of 0.09<~x<~0.20 with a maximum transition temperature of 26 K. Abrupt appearance of the superconducting (SC) phase at x∼0.09 is concomitant with a destroy of the AF ordered phase, indicating the competitive relation between two phases. Possible relation between the wide SC phase and the lattice spacing is discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pr1-xLaxCexCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 26 | Pressure not reported | onset |
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