Competition and coexistence of antiferromagnetism and superconductivity in RBa2Cu3O6+x (R=Lu, Y) single crystals
A. N. Lavrov, L. P. Kozeeva, M. R. Trunin, V. N. Zverev
DOI 10.1103/PhysRevB.79.214523 · Physical Review B
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Abstract
We use c-axis resistivity and magnetoresistance measurements to study the interplay between antiferromagnetic (AF) and superconducting (SC) ordering in underdoped RBa2Cu3O6+x (R=Lu, Y) single crystals. Both orders are found to emerge from an anisotropic three-dimensional metallic state upon which antiferromagnetism opposes superconductivity by driving the doped holes toward localization. Despite the competition, the superconductivity sets in before the AF order is completely destroyed and coexists with latter in a certain range of hole doping. We find also that strong magnetic fields affect the AF-SC interplay by both suppressing the superconductivity and stabilizing the Néel order.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LuBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15 | Pressure not reported | onset |
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15 | Pressure not reported | onset |
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