Find Paper, Faster
Example:10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
Electric-field control of exchange interactions
Physical Review B  (IF4.036),  Pub Date : 2021-11-30, DOI: 10.1103/physrevb.104.174443
S. Mankovsky, E. Simon, S. Polesya, A. Marmodoro, H. Ebert

The impact of an applied electric field on exchange coupling parameters has been investigated based on first-principles electronic structure calculations by means of the Korringa-Kohn-Rostoker Green function method. The calculations have been performed for a Fe film, free-standing and deposited on two different substrates, having 1 monolayer (ML) thickness to minimize the effect of screening of the electric field typical for metallic systems. By comparing the results for the free-standing Fe ML with those for Fe on the various substrates, we could analyze the origin of the field-induced change of the exchange interactions. Compared to the free-standing Fe ML, in particular rather pronounced changes have been found for the Fe/Pt(111) system due to the localized electronic states at the Fe/Pt interface, which are strongly affected by the electric field and which play an important role for the Fe-Fe exchange interactions.