The Influence of Zn on Superconducting Properties of Bi2Sr2Ca1Cu2OX
- 6 Downloads
It was investigated that the influence of Ca substitution by Zn on the specific resistivity, thermal power, and excess conductivity of Bi2Sr2CaCu2OX, Bi2Sr2Ca0.8Zn0.2Cu2OX, and Bi2Sr2Ca0.4Zn0.6Cu2OX polycrystalline samples in the 70–300 K temperature interval. The fluctuation-induced conductivity is analyzed using the Aslamasov and Larkin and Lawrence and Doniach models. The microscopic parameters such as dimensional crossover temperature (Tcr), interlayer coupling strength (J), and zero temperature coherence length along c axis (ξ0) are estimated.
KeywordsSuperconductor Thermal power Resistivity Excess conductivity
This work was supported by the Science Development Foundation under the President of the Republic of Azerbaijan- Grant № EIF-2013-9(15)-46/08/1.
- 5.S.S. Ragimov, A.A. Saddinova, V.M. Aliev, R.I. Selim-zade, The influence of fluctuations on the superconducting properties of Bi2Sr2Ca0.6Zn0.4Cu2OX and Bi2Sr2Ca1Cu2OX, J. Mater. Sci. Forum Vol. 845, (2016), pp 17–20 Trans Tech PublicationsGoogle Scholar
- 6.Solovjov, A.L.: Fluctuation conductivity in Y-Ba-Cu-O films with artificially produced defects. Fizika Nizkikh Temperatur, v.28. N11, 1138–1149 (2002)Google Scholar
- 10.Lawrence, W.E., Doniach, S.: Theory of paraconductivity of layered superconductors. In: Proc.of the Twelfth. Int.Conf. On Low Temp. Phys., Kioto, Japan, pp. 361–368 (1971)Google Scholar