Equilibrium magnetization in heavy-ion-irradiated Bi2Sr2CaCu2O8 probed by torque and SQUID magnetometry
R. J. Drost, C. J. van der Beek, J. A. Heijn, M. Konczykowski, P. H. Kes
DOI 10.1103/PhysRevB.58.R615 · Physical Review B
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Abstract
Measurements of the magnetization and torque on heavy-ion-irradiated Bi2Sr2CaCu2O8 single crystals show that the equilibrium distribution of pancake vortices only depends on the applied field component parallel to the c axis, for fields both above and below the dose equivalent field and also for various irradiation angles with respect to the c axis. This observation is in clear contrast with the irreversible magnetization, which shows a large anisotropy with respect to the field alignment with the columnar defects.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 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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