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Global Identification of Co-Translational Interaction Networks by Selective Ribosome Profiling
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Universality of defect-skyrmion interaction profiles
Imara Lima Fernandes1, Juba Bouaziz2, Stefan Blügel2
1Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, 52425, Jülich, Germany. i.lima.fernandes@fz-juelich.de.
Nature Communications
|October 24, 2018
Summary
Magnetic skyrmions interact with defects, with their behavior determined by defect type. This research maps skyrmion-defect interactions, aiding spintronic device design.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Surface Science
Background:
- Magnetic skyrmions are promising for spintronic devices.
- Controlling skyrmions requires understanding their interaction with material defects.
Purpose of the Study:
- To map the energy profile of skyrmion-defect interactions.
- To establish a generic interaction profile based on defect properties.
- To guide the design of spintronic devices using controlled skyrmion behavior.
Main Methods:
- First-principles calculations to model skyrmion-defect interactions.
- Analysis of the energy profile as a function of defect electron filling.
- Investigation of transition metal adatoms and surface-implanted defects in PdFe/Ir(111) thin films.
Main Results:
- Identified a generic interaction profile shape for skyrmions with single-atom defects.
- Demonstrated that defect chemical nature dictates whether skyrmions are repelled or pinned.
- Related interaction behavior to the filling of bonding/anti-bonding electronic states.
Conclusions:
- Skyrmion-defect interactions are predictable based on defect electronic structure.
- Fundamental understanding facilitates the design of devices for skyrmion generation and control.
- Insights applicable to catalysis and surface science bond theories.
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