TY  - JOUR
AU  - Nandy, Ashis Kumar
AU  - Kiselev, Nikolai
AU  - Blügel, Stefan
TI  - Interlayer Exchange Coupling: A General Scheme Turning Chiral Magnets into Magnetic Multilayers Carrying Atomic-Scale Skyrmions
JO  - Physical review letters
VL  - 116
IS  - 17
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2016-02471
SP  - 177202
PY  - 2016
AB  - We report on a general principle using interlayer exchange coupling to extend the regime of chiral magnetic films in which stable or metastable magnetic Skyrmions can appear at a zero magnetic field. We verify this concept on the basis of a first-principles model for a Mn monolayer on a W(001) substrate, a prototype chiral magnet for which the atomic-scale magnetic texture is determined by the frustration of exchange interactions, impossible to unwind by laboratory magnetic fields. By means of ab initio calculations for the Mn/Wm/Con/Pt/W(001) multilayer system we show that for certain thicknesses m of the W spacer and n of the Co reference layer, the effective field of the reference layer fully substitutes the required magnetic field for Skyrmion formation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000374965000009
C6  - pmid:27176536
DO  - DOI:10.1103/PhysRevLett.116.177202
UR  - https://juser.fz-juelich.de/record/808972
ER  -