Magnetic skyrmions are topologically protected spin textures typical of chiral magnets characterized by a special kind of exchange interaction known as Dzyaloshinkii-Moriya interaction (DMI). In the last years growing interest has been addressed to the study of these topological defects both from a fundamental point of view and for its several technological applications like for instance their usage as information carriers [1]. Great attention has been also given to skyrmion nucleation, stability and motion in confined magnetic systems under the influence of a spin-current [2,3]. Recently, the effect of confinement has been studied in the presence of spin-polarized current [2], but there are not yet studies focusing on the skyrmion motion driven by SHE in constrained geometries. Here, we solve analytically Thiele’s equation in the presence of spin-Hall effect (SHE) with no external field and by taking into account confinement.
Skyrmion motion induced by spin-Hall current in constrained geometries - Presentazione orale - Conferenza internazionale
ZIVIERI, Roberto;
2015
Abstract
Magnetic skyrmions are topologically protected spin textures typical of chiral magnets characterized by a special kind of exchange interaction known as Dzyaloshinkii-Moriya interaction (DMI). In the last years growing interest has been addressed to the study of these topological defects both from a fundamental point of view and for its several technological applications like for instance their usage as information carriers [1]. Great attention has been also given to skyrmion nucleation, stability and motion in confined magnetic systems under the influence of a spin-current [2,3]. Recently, the effect of confinement has been studied in the presence of spin-polarized current [2], but there are not yet studies focusing on the skyrmion motion driven by SHE in constrained geometries. Here, we solve analytically Thiele’s equation in the presence of spin-Hall effect (SHE) with no external field and by taking into account confinement.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
