Relaxation-caused suppression of magnetization in superconducting YBa2Cu3O7−δ single crystals
M. Wolf, J. Gleitzmann, W. Gey
DOI 10.1103/PhysRevB.47.8381 · Physical Review B
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Abstract
Stepwise zero-field-cooled, field-cooled-cooling (FCC), and field-cooled-warming (FCW) magnetization measurements have been made on YBa2Cu3O7−δ single crystals in small magnetic fields applied in the ab plane and along the c axis. In a narrow temperature range below the FCC-Tc onset (≊2 K) the magnetization shows ‘‘quasihysteretic’’ behavior in temperature. FCC and FCW paths do not coincide, FCW having lower magnetizations. We interpret the accompanying lower FCW-Tc onset, in analogy to findings on nonmetallic spin glasses, as a result of the continuous succession of temperature steps.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.3 | Pressure not reported | onset |
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