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Report No.

Vortex phase diagram in Bi$$_{2}$$Sr$$_{2}$$CaCu$$_{2}$$O$$_{8+delta}$$ with damage tracks created by 30 MeV fullerene irradiation

Ishikawa, Norito   ; Van der Beek, C. J.*; Dunlop, A.*; Jaskierowicz, G.*; Li, M.*; Kes, P. H.*; Della-Negra, S.*

By irradiating 30MeV C$$_{60}$$ fullerene beam, we have produced tracks of diameter 20nm and length 200nm near the surface of single crystalline Bi$$_{2}$$Sr$$_{2}$$CaCu$$_{2}$$O$$_{8+delta}$$. Both the critical current density and magnetic irreversibility line are significantly enhanced. The irradiated crystals have shown salient features of the ($$B$$,$$T$$) vortex phase diagram of vortex matter both of unirradiated sample, such as the first order vortex phase transition, and the exponential Bose glass line characteristic of heavy ion-irradiated crystals.



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Category:Physics, Multidisciplinary



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