Tuning of the Dzyaloshinskii-Moriya interaction by He+ion irradiation

Tuning of the Dzyaloshinskii-Moriya interaction by He+ion irradiation

We studied the impact of He+ irradiation on the Dzyaloshinskii-Moriya interaction (DMI) in Ta/Co20Fe60B20/Pt/MgO samples. We found that irradiation of 40 keV He+ ions increases the DMI by approximately 20% for fluences up to 2 × 1016 ions/cm2 before it decreases for higher fluence values. In contras...

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Bibliographic Details
Main Authors: Fassbender, J. (Author), Jué, E. (Author), Nembach, H.T (Author), Poetzger, K. (Author), Shaw, J.M (Author), Silva, T.J (Author)
Format: Article
Language:English
Published: American Institute of Physics Inc. 2022
Subjects:
Boron compounds
Cobalt compounds
Dzyaloshinskii-Moriya interaction
Exchange mechanism
Fluence dependence
Fluences
Intelligent systems
Ion bombardment
Ions
Ions irradiation
Iron compounds
Monte Carlo methods
Platinum
Site exchange
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