Journal
PHYSICAL REVIEW B
Volume 104, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.104.L060409
Keywords
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Funding
- University of Strasbourg Institute for Advanced Study (USIAS)
- European Union [964931]
- DARPA [HR0011727183D18AP00010]
- DFG [DU 1489/3-1]
- European Research Council (ERC) under the European Union [681405-DYNASORE]
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This research demonstrates the generation of Dzyaloshinskii-Moriya interaction in ultrathin metal film from a femtosecond pulse in electric field, achieving magnetoelectric coupling. Through calculations and simulations, it is shown that this phenomenon does not require structural inversion-symmetry breaking and can be achieved in a very short timescale.
We show how a Dzyaloshinskii-Moriya interaction can be generated in an ultrathin metal film from a femtosecond pulse in electric field. This interaction does not require structural inversion-symmetry breaking, and its amplitude can be tuned depending on the amplitude of the field. We perform first-principles calculations to estimate the strength of the field-induced magnetoelectric coupling for ferromagnetic Fe, Co, and Ni, and antiferromagnetic Mn, as well as FePt and MnPt alloys. Last, using atomistic simulations, we demonstrate how an isolated antiferromagnetic skyrmion can be coherently nucleated from the collinear background by an ultrashort pulse in electric field on a hundred-femtosecond timescale.
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