We have measured temperature dependent complex conductivity on Bi2Sr2CaCu2O8+delta (Bi2212) superconducting system at different doping using single coil technique to determine the superconducting fluctuations near the T-c. The results show that the fluctuation region below T-c evolves linearly with the doping and is mainly controlled by the superfluid density. On the other hand, the fluctuation region above T-c shows an exponential increase with unederdoping and seems to have an intimate relationship with the anomalous electronic structure in the underdoped regime.
Doping Dependent Fluctuations Near Tc in the Bi2212 Superconductor / D., DI CASTRO; Saini, Naurang Lal; Bianconi, Antonio; A., Lanzara. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS B. - ISSN 0217-9792. - STAMPA. - 14:(2000), pp. 2872-2877. [10.1142/S0217979200003022]
Doping Dependent Fluctuations Near Tc in the Bi2212 Superconductor
SAINI, Naurang Lal;BIANCONI, Antonio;
2000
Abstract
We have measured temperature dependent complex conductivity on Bi2Sr2CaCu2O8+delta (Bi2212) superconducting system at different doping using single coil technique to determine the superconducting fluctuations near the T-c. The results show that the fluctuation region below T-c evolves linearly with the doping and is mainly controlled by the superfluid density. On the other hand, the fluctuation region above T-c shows an exponential increase with unederdoping and seems to have an intimate relationship with the anomalous electronic structure in the underdoped regime.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
