7th IMRMPT

Abstract

Abstract information

English title:	Current effect on the critical parameters from paraconductivity analysis for the high-temperature superconductor GdBa2Cu3O7-δ
Spanish title:	Efecto de la corriente en el c�lculo de los par�metros cr�ticos a partir del an�lisis de la paraconductividad para el superconductor de alta temperatura GdBa2Cu3O7-δ
English abstract:	Using the solid-state reaction, the high temperature superconducting material GdBa2Cu3O7-δ was synthesized and his resistive behavior was studied as a function of temperature under the application of seven different electric currents to report the results obtained from the analysis of the paraconductivity (excess of conductivity) fluctuations in the phase transition from the normal state to the superconducting state of a ceramic sample. Through the resistive behavior of the sample in the pairing, the critical superconducting parameters characterizing the of ceramic GdBa2Cu3O7-δ were determined: penetration length, coherence length, critical magnetic fields one and two, critical current density, jump in specific heat at the superconducting transition and Ginzburg parameter which are not affected by the variation in the applied current. This talk will show the method used to perform the experimental characterization of a high critical temperature superconducting material and will review the most relevant aspects of the Ginzburg and Landau theory.
Spanish abstract:	Por medio de la reacci�n de estado s�lido se sintetiz� el material superconductor de alta temperatura GdBa2Cu3O7-δ para la cual se estudi� el comportamiento resistivo en funci�n de la temperatura bajo se la aplicaci�n de siete corrientes el�ctricas diferentes para reportar los resultados obtenidos del an�lisis de las fluctuaciones de paraconductividad (exceso de conductividad) en la transici�n de fase del estado normal al estado superconductor de una muestra cer�mica. A trav�s del comportamiento resistivo de la muestra en la regi�n de apareamiento en la transici�n superconductora, se logr� la determinaci�n de los par�metros cr�ticos superconductores que caracterizan la cer�mica GdBa2Cu3O7-δ: longitud de penetraci�n, longitud de coherencia, campos magn�ticos cr�ticos uno y dos, densidad de corriente cr�tica, salto en el calor espec�fico en la transici�n superconductora y par�metro de Ginzburg los cuales no se ven afectados por la variaci�n en la corriente aplicada. En esta charla se mostrar� el m�todo usado para realizar la caracterizaci�n experimental de un material superconductor de alta temperatura cr�tica y se har� una revisi�n sobre los aspectos m�s relevantes de la teor�a de Ginzburg y Landau.
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Authors

Name	Institution	Email
JAIRO ROA-ROJAS	Universidad Nacional de Colombia - Bogot�	jroar@unal.edu.co
Leyda Juliana Rivera Contreras	Universidad Nacional de Colombia	ljriverac@unal.edu.co
Eliana Marcela Vargas-Pineda	Universidad Nacional de Colombia	elmvargaspi@unal.edu.co
?David Arsenio Landinez Tellez?	Universidad Nacional de Colombia	dalandinezt@unal.edu.co

Presentation

Room:	Principal Room
Date:	June 8, 2023
Hour:	14:20 - 14:40

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7^th IMRMPT
Seventh International Meeting for Researchers in Materials and Plasma Technology

Previous editions:

        1st IMRMPT 2011
        2nd IMRMPT 2013
        3rd IMRMPT 2015
        4th IMRMPT 2017
        5th IMRMPT 2019
        5+1 IMRMPT 2021

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