Cu(2) nuclear resonance evidence for a magnetic phase in aged 60-K superconductors RBa2Cu3O6+x(R=Tm,Y)
A. V. Dooglav, H. Alloul, O. N. Bakharev, C. Berthier, A. V. Egorov, M. Horvatic, E. V. Krjukov, P. Mendels, Yu. A. Sakhratov, M. A. Teplov
DOI 10.1103/PhysRevB.57.11792 · Physical Review B
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Abstract
It is widely believed that the long-range antiferromagnetic order in the RBa2Cu3O6+x compounds (R=Y and rare earths except for Ce, Pr, Tb) is totally suppressed for the oxygen index x>~0.4 (antiferromagnetic insulator-metal transition). We present the results of the copper nuclear quadrupole resonance/NMR studies of aged RBa2Cu3O6+x (R=Tm,Y) samples showing that a magnetic order can still be present at oxygen contents x up to at least 0.7 and at temperatures as high as 77 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| TmBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 53 | Pressure not reported | onset |
| TmBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 61 | Pressure not reported | onset |
| TmBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 64 | Pressure not reported | onset |
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | unknown |
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