• SHAILAJ KUMAR SHRIVASTAVA

Abstract: In this paper contact and non-contact techniques for the measurement of transition temperature of high-Tc superconductors is described. A non contact method has been developed for measurement of transition temperature (Tc) of high-Tc superconductors. This technique is based on the measurement of change in the resonance frequency of a tank circuit with temperature. The applicability of this method in obtaining Tc of a YBCO thin film and a small piece of YBCO bulk sample is demonstrated. This technique can be effectively used for characterizing the samples of irregular shape and small dimensions where it is difficult to make proper contacts required for resistivity measurements.

Index terms: Transition temperature, Meissner effect, Non contact method, Resistivity, Four probe method, Susceptibility

"MEASUREMENT METHODS FOR DETERMINATION OF TRANSITION TEMPERATURE OF HIGH -Tc SUPERCONDUCTORS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.473-478, December-2018, Available :http://www.jetir.org/papers/JETIR1812466.pdf

"MEASUREMENT METHODS FOR DETERMINATION OF TRANSITION TEMPERATURE OF HIGH -Tc SUPERCONDUCTORS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp473-478, December-2018, Available at : http://www.jetir.org/papers/JETIR1812466.pdf