Pressure Dependence of the Irreversibility Line in Bi2Sr2CaCu2O8+ : Role of Anisotropy in Flux-Line Formation
نویسندگان
چکیده
One of the important problems of high-temperature superconductivity is to understand and ultimately to control uxoid motion. Here we present data on the pressure dependence of the irreversibility line measured up to 2.5 GPa. We observe that the application of pressure changes the interplanar coupling by decreasing the c-axis length, without signi cantly disturbing the intraplanar superconductivity. Our results directly show the relationship between lattice spacing and the irreversibility line in Bi2Sr2CaCu2O8+ , and demonstrate the potential for a dramatic reduction in the ux motion.
منابع مشابه
Pressure Dependence of Flux Dynamics in Bi2Sr2CaCu2O8+δ
An important problem in high temperature superconductivity is that of understanding, and ultimately controlling, fluxoid motion. Results are presented in this paper which were obtained using a new technique for measuring the pressure dependence of the transition to superconductivity in a diamond-anvil cell. By monitoring the third harmonic of the acsusceptibility, we observe the onset of irreve...
متن کاملPressure dependence of the irreversibility line in Bi2Sr2CaCu2O(8+delta): role of anisotropy in flux-line formation
One of the important problems of high-temperature superconductivity is to understand and ultimately to control fluxoid motion. Here we present data on the pressure dependence of the irreversibility line measured up to 2.5 GPa. We observe that the application of pressure changes the interplanar coupling by decreasing the c-axis length, without significantly disturbing the intraplanar superconduc...
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