Antiferromagnetism and superconductivity in the presence of Ho moments in HoBa2Cu3Ox
Y. Kuno, N. Nishida, H. Miyatake, S. Okuma, Y. Watanabe, T. Yamazaki, M. Ishikawa, T. Takabatake, Y. Nakazawa, J. H. Brewer, S. R. Kreitzman, T. M. Riseman
DOI 10.1103/PhysRevB.38.9276 · Physical Review B
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Abstract
Using the zero-field muon-spin-relaxation technique, we have observed a long-range magnetic ordering of Cu moments in a tetragonal insulator HoBa2Cu3Ox with x∼6.2. The magnitude of the internal field and its temperature dependence were found to be similar to those of YBa2Cu3O6.2. At temperatures below 3 K, freezing of the Ho magnetic moment was observed as in a 90-K superconductor HoBa2Cu3O6.9. These results imply that the effect of the magnetic rare-earth Ho3+ ions on the antiferromagnetism of the Cu ions is small, suggesting a relatively weak interaction between the Ho ions and the electrons in two-dimensional Cu-O planes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| HoBa2Cu3O6.9 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| YBa2Cu3O6.9 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
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