7th IMRMPT

Abstract

Abstract information

English title:	Effect of the Fe3+ ion substitution in the B-site on electric and magnetic properties of the novel perovskite Sr0.33Sm0.67Ti0.33Mn0.67O3 ceramics
Spanish title:	Efecto de la sustituci�n de iones Fe3+ en el sitio B sobre las propiedades el�ctricas y magn�ticas de la nueva perovskita cer�mica Sr0.33Sm0.67Ti0.33Mn0.67O3
English abstract:	Partial substitution of 39% in B-site cationic with Fe3+ ions in the new perovskite-type Sr0.33Sm0.67Ti0.33Mn0.67O3 ceramic synthesized by the conventional solid-state reaction method, increased the sintering temperature and the unit cell volume of its orthorhombic structure (space group Pnma # 62) by 0.4%. This induced a reduction in grain size and electrical transport according to V-I measurements, where semiconductivity behavior was evidenced, with resistivity values in the linear regime for the ceramic without substitution of 51.72 ohm�cm and after the substitution of 26912.93 ohm�cm, finding variations in the thermistor-type behavior of the material. In addition, as observed in the magnetization curves as a function of the applied field and susceptibility as a function of temperature, caused a change from ferromagnetic to ferrimagnetic order with temperatures of Tc=81.32 K and Tc= 65.32 K, respectively.
Spanish abstract:	La sustituci�n parcial del 39% en el sitio cati�nico B con iones Fe3+ en la nueva cer�mica tipo perovskita Sr0.33Sm0.67Ti0.33Mn0.67O3 sintetizada mediante el m�todo convencional de reacci�n de estado s�lido, aument� la temperatura necesaria para la sinterizaci�n, el volumen de la celda unitaria de su estructura ortorr�mbica (grupo espacial Pnma # 62) en un 0.4% e indujo a la reducci�n del tama�o de grano y de transporte el�ctrico seg�n medidas V-I, en donde se evidenci� semiconductividad, con valores de resistividad en el r�gimen lineal para la cer�mica sin sustituci�n de 51.72 ohm�cm y despu�s de la sustituci�n de 26912.93 ohm�cm, encontrando variaciones en el comportamiento tipo termistor del material. Adem�s, , seg�n lo observado en las curvas de magnetizaci�n en funci�n del campo aplicado y de susceptibilidad en funci�n de la temperatura ocasion� un cambio de orden ferromagn�tico a ferrimagn�tico con temperaturas de Tc=81.32 K y Tc= 65.32 K, respectivamente.
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Authors

Name	Institution	Email
Carlos Arturo Parra Vargas	Grupo F�sica de Materiales, Universidad Pedag�gica y Tecnol�gica de Colombia	carlos.parra@uptc.edu.co
JAIRO ROA-ROJAS	Universidad Nacional de Colombia - Bogot�	jroar@unal.edu.co
Javier Alonso Cuervo Farf�n	Universidad Pedag�gica y tecnol�gica de Colombia-Tunja	javier.cuervo02@uptc.edu.co
Jose Mauricio Cubillos Cadena	GISABA, Escuela de Ingenier�a Ambiental, Facultad de Ingenier�a, Universidad Pedag�gica y Tecnol�gica de Colombia	jose.cubillos@uptc.edu.co
Indry Milena Saavedra Gaona	Grupo F�sica de Materiales	indry.saavedra@uptc.edu.co

Presentation

Room:	Principal Room
Date:	June 9, 2023
Hour:	08:40 - 09:00

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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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