ABSTRACT
In this thesis, we present a theoretical study on the current-induced nucleation and propagation of antiferromagnetic skyrmionium. A skyrmionium, also known as 2π-skyrmion, is a vortex-like magnetic structure characterized by zero topological charge. We show by means of micro-magnetic simulation that an antiferromagnetic skyrmionium can be nucleated via a local injection of spin current with toroidal distribution. Our systematic study of the current-induced dynamics shows that a spatially uniform spin current induces propagation of antiferromagnetic skyrmionium with measurable distortion at high current densities. We derive expression for the velocity of the antiferromagnetic skyrmionium based on the collective-coordinate model and obtain good agreement with our numerical results.
OBADERO, A (2021). Theoretical Study Of Current-Induced Dynamics Of An Antiferromagnetic Skyrmionium. Afribary. Retrieved from https://afribary.com/works/theoretical-study-of-current-induced-dynamics-of-an-antiferromagnetic-skyrmionium
OBADERO, ABAYOMI "Theoretical Study Of Current-Induced Dynamics Of An Antiferromagnetic Skyrmionium" Afribary. Afribary, 13 Apr. 2021, https://afribary.com/works/theoretical-study-of-current-induced-dynamics-of-an-antiferromagnetic-skyrmionium. Accessed 21 Dec. 2024.
OBADERO, ABAYOMI . "Theoretical Study Of Current-Induced Dynamics Of An Antiferromagnetic Skyrmionium". Afribary, Afribary, 13 Apr. 2021. Web. 21 Dec. 2024. < https://afribary.com/works/theoretical-study-of-current-induced-dynamics-of-an-antiferromagnetic-skyrmionium >.
OBADERO, ABAYOMI . "Theoretical Study Of Current-Induced Dynamics Of An Antiferromagnetic Skyrmionium" Afribary (2021). Accessed December 21, 2024. https://afribary.com/works/theoretical-study-of-current-induced-dynamics-of-an-antiferromagnetic-skyrmionium