Flux dynamics and c -axis resistive dissipation in the mixed state of high-temperature superconductors The case of (La 1− x Sr x ) 2 CuO 4
作者: S.L. YuanZ.J. YangK. Kadowaki
作者单位: 1High Magnetic Field Laboratory, ASIPP, P.O. Box 1126, Hefei 230031, China
2ET / 335, Argonne National Laboratory, Argonne, IL 60439, USA
3National Research Institute for Metals, Tsukuba Laboratories, Ibaraki 305, Japan
刊名: Physica C: Superconductivity and its applications, 1995, Vol.248 (1), pp.97-107
来源数据库: Elsevier Journal
DOI: 10.1016/0921-4534(95)00232-4
原始语种摘要: Abstract(#br)We take the single-crystalline (La 1− x Sr x ) 2 CuO 4 system ( x = 0.068) as an example to study flux dynamics in the mixed state of high- T c superconductors by systematically measuring its c -axis resistivity, ϱ c , as a function of temperature, magnetic-field intensity and magnetic-field orientation with respect to the ab -plane. We firstly show the experimental evidence that excludes the contribution of Lorentz force driven flux motion to the c -axis resistive dissipation. Furthermore, we argue that neither the vortex dynamics for conventional anisotropic superconductors nor the two-dimensional pancake vortices model is appropriate for the present system. We then demonstrate the difficulty of the previously considered Lorentz force free dissipation models in explaining...
全文获取路径: Elsevier  (合作)
影响因子:0.718 (2012)