Key Points in the Determination of the Interfacial Dzyaloshinskii–Moriya Interaction From Asymmetric Bubble Domain Expansion

Magni, A.; Carlotti, G.; Casiraghi, Arianna; Darwin, E.; Durin, Gianfranco; Diez, L. Herrera; Hickey, B. J.; Huxtable, Alexandra J.; Hwang, Chanyong; Jakob, G.; Kim, C.; Kläui, Mathias; Langer, J.; Marrows, Christopher H.; Nembach, Hans T.; Ravelosona, D.; Riley, Grant; Shaw, Justin M.; Sokalski, Vincent; Tacchi, S.; Kuepferling, Michaela

doi:10.1109/tmag.2022.3217891

Cited by 5 publications

(1 citation statement)

References 57 publications

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“…Furthermore, to judge the relative accuracy and reliability of different methods it would be desirable to compare measurements performed on identical samples, and a more intense research effort should respond to this need. However, systematic studies comparing the various methods are rare and the disagreement between results obtained by different techniques is not often discussed (Magni et al, 2022).…”

Section: Advantages and Limitationsmentioning

confidence: 99%

Measuring interfacial Dzyaloshinskii-Moriya interaction in ultrathin magnetic films

et al. 2023

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The Dzyaloshinskii-Moriya interaction (DMI), one of the origins of chiral magnetism, is currently attracting considerable attention in the research community focusing on applied magnetism and spintronics. For future applications, an accurate measurement of its strength is indispensable. Here the state of the art of measurement techniques involving the coefficient of the Dzyaloshinskii-Moriya interaction, the DMI constant D, is reviewed, with a focus on systems where the interaction arises from the interface between two materials (i.e., the interfacial DMI). An overview of the experimental techniques, as well as their theoretical background and models for the quantification of the DMI constant, is given. The measurement techniques are divided into three categories: (a) domain-wall-based measurements, (b) spin-wave-based measurements, and (c) spin-orbit torque-based measurements. The advantages and disadvantages of each method are analyzed, and D values at different interfaces are compared. The review aims to obtain a better understanding of the applicability of the different techniques to various stacks and of the origin of apparent disagreements among literature values.

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Section: Advantages and Limitationsmentioning

confidence: 99%

Measuring interfacial Dzyaloshinskii-Moriya interaction in ultrathin magnetic films

et al. 2023

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Perspective on unconventional computing using magnetic skyrmions

Lee

Msiska

Brems

et al. 2023

Applied Physics Letters

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Learning and pattern recognition inevitably requires memory of previous events, a feature that conventional CMOS hardware needs to artificially simulate. Dynamical systems naturally provide the memory, complexity, and nonlinearity needed for a plethora of different unconventional computing approaches. In this perspective article, we focus on the unconventional computing concept of reservoir computing and provide an overview of key physical reservoir works reported. We focus on the promising platform of magnetic structures and, in particular, skyrmions, which potentially allow for low-power applications. Moreover, we discuss skyrmion-based implementations of Brownian computing, which has recently been combined with reservoir computing. This computing paradigm leverages the thermal fluctuations present in many skyrmion systems. Finally, we provide an outlook on the most important challenges in this field.

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