TY  - JOUR
AU  - Jia, Hongying
AU  - Zimmermann, Bernd
AU  - Michalicek, Gregor
AU  - Bihlmayer, Gustav
AU  - Blügel, Stefan
TI  - Electric dipole moment as descriptor for interfacial Dzyaloshinskii-Moriya interaction
JO  - Physical review materials
VL  - 4
SN  - 2475-9953
CY  - College Park, MD
PB  - APS
M1  - FZJ-2020-01048
SP  - 024405
PY  - 2020
AB  - Chiral magnets are of fundamental interest and have important technological ramifications. The origin of chiralmagnets lies in the Dzyaloshinskii-Moriya interaction (DMI), an interaction whose experimental and theoreticaldetermination is laborious. We derive an expression that identifies the electric dipole moment as descriptor forthe systematic design of chiral magnetic multilayers. Using density functional theory calculations, we determinethe  DMI  of  (111)-oriented  metallic  ferromagnetic Z/Co/Pt  multilayers  of  ultrathin  films.  The  nonmagneticlayer Z determines  the  DMI  at  the  Co-Pt  interface.  The  results  validate  the  electric  and  magnetic  dipolemoments  as  excellent  descriptors.  We  found  a  linear  relation  between  the  electric  dipole  moment  of  Pt,  theAllen electronegativity of Z, and the contribution of Pt to the total DMI.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000513551700001
DO  - DOI:10.1103/PhysRevMaterials.4.024405
UR  - https://juser.fz-juelich.de/record/873846
ER  -