Joy Y. Cheng, Daniel P. Sanders, et al.
SPIE Advanced Lithography 2008
We report on the c-axis resistivity ρc(H) in Bi2Sr2CaCu2O8+β (Bi-2212) that exhibits a maximum in quasistatic magnetic fields up to 60 T. We show that below Tc c-axis tunneling is a parallel, two-channel process: (i) σJ of Cooper pairs and (ii) σq of quasiparticles: σc = σJ + σq. We demonstrate that high-field c-axis conductivity is linear-in-field at H < Hc2, in agreement with the field-linear dependence of quasiparticle conductivity σq we find in mesas. Near 60 T, as temperature decreases, ρc saturates, confirming a gapless spectrum of quasiparticles. The linear ρc(H) behavior extends up to the maximum field in experiment (60T), beyond the applicability of the Fermi-liquid approach, which can be due to effects of the pseudo gap, not accounted in the model. © 2000 Elsevier Science B.V All rights reserved.
Joy Y. Cheng, Daniel P. Sanders, et al.
SPIE Advanced Lithography 2008
J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
S. Cohen, J.C. Liu, et al.
MRS Spring Meeting 1999
Imran Nasim, Melanie Weber
SCML 2024