Mechanism for normal chirality at hexagonal interfaces
ORAL
Abstract
We study the net chirality created by the Dzyaloshinkii-Moriya interaction (DMI) at the boundary between hexagonal layers of magnetic and non-magnetic materials. It is determined that another mechanism besides elastic torsion is required to understand the change in chirality observed in Dy/Y multilayers during field cooling. We show that due to the overlap between magnetic and non-magnetic atoms, interfacial steps may produce a DMI normal to the interface in magnetic heterostructures.
*Research sponsored by the Division of Materials Sciences and Engineering, U.S. Department of Energy under contract with UT-Battelle, LLC.
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