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Physics  2000 

Quasiparticle and Cooper Pair Tunneling in the Vortex State of Bi-2212

DOI: 10.1103/PhysRevB.62.R14681

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Abstract:

From measurements of the c-axis I-V characteristics of intrinsic Josephson junctions in Bi_2Sr_2CaCu_2O_{8+delta} (Bi-2212) mesas we obtain the field dependence (H || c) of the quasiparticle (QP) conductivity, sigma_q(H,T), and of the Josephson critical current density, J_c(H,T). The quasiparticle conductivity sigma_q(H) increases sharply with H and reaches a plateau at 0.05 T

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