Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26351104
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2015 ; 6
(ä): 8193
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Dynamically stabilized magnetic skyrmions
#MMPMID26351104
Zhou Y
; Iacocca E
; Awad AA
; Dumas RK
; Zhang FC
; Braun HB
; Åkerman J
Nat Commun
2015[Sep]; 6
(ä): 8193
PMID26351104
show ga
Magnetic skyrmions are topologically non-trivial spin textures that manifest
themselves as quasiparticles in ferromagnetic thin films or noncentrosymmetric
bulk materials. So far attention has focused on skyrmions stabilized either by
the Dzyaloshinskii-Moriya interaction (DMI) or by dipolar interaction, where in
the latter case the excitations are known as bubble skyrmions. Here we
demonstrate the existence of a dynamically stabilized skyrmion, which exists even
when dipolar interactions and DMI are absent. We establish how such dynamic
skyrmions can be nucleated, sustained and manipulated in an effectively lossless
medium under a nanocontact. As quasiparticles, they can be transported between
two nanocontacts in a nanowire, even in complete absence of DMI. Conversely, in
the presence of DMI, we observe that the dynamical skyrmion experiences strong
breathing. All of this points towards a wide range of skyrmion manipulation,
which can be studied in a much wider class of materials than considered so far.