7th IMRMPT

Abstract

Abstract information

English title:	Vortex state in a two-band mesoscopic superconductor/ferromagnetic hybrid system
Spanish title:	Estado de v�rtice en un sistema hibrido superconductor mesosc�pico de dos bandas/ferromagn�tico
English abstract:	We consider a two-band supercondutor-ferromagnetic hybrid system by using the two-component Ginzburg-Landau model. In this system is possible to obtain diferent vortex configuration for each band, the so-called fractional vortex state. In this work we study the effect of the homogeneuous magnetic field and the permanent magnetization of the ferromagnetic on the stability of fractional vortex state and the formation of vortex-antivortex pair and found that the permanent magnetization of the ferromagnetic favors to spontaneously access some fractional vortex state. Finally, we build up a phase diagram in the magnetic field-permanent magnetization plane for fractional vortex and vortex-antivortex states.
Spanish abstract:	Consideramos un sistema h�brido superconductor de duas bandas-ferromagn�tico utilizando el modelo Ginzburg-Landau de dos componentes. En este sistema es posible obtener diferentes configuraciones de v�rtice para cada banda, el llamado estado de v�rtice fraccional. En este trabajo estudiamos el efecto del campo magn�tico homog�neo y la magnetizaci�n permanente de los ferromagn�ticos sobre la estabilidad del estado de v�rtice fraccional y la formaci�n del par v�rtice-antiv�rtice donde encontramos que la magnetizaci�n permanente de los ferromagn�ticos favorece el acceso espont�neo a alg�n estado de v�rtice fraccional. Finalmente, construimos un diagrama de fase en el plano de campo magn�tico - magnetizaci�n permanente para estados de v�rtice fraccional y v�rtice-antiv�rtice.
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Authors

Name	Institution	Email
JUAN CARLOS PINA VELASQUEZ	UNIVERSIDADE FEDERAL DE PERNAMBUCO	juan.carlos@ufpe.br

Presentation

Room:	Principal Room
Date:	June 7, 2023
Hour:	09:20 - 09:40

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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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