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

Magni A, Carlotti G, Casiraghi A, Darwin E, Durin G, Diez LH, Hickey BJ, Huxtable A, Hwang CY, Jakob G, Kim C, Klaui M, Langer J, Marrows CH, Nembach HT, Ravelosona D, Riley GA, Shaw JM, Sokalski V, Tacchi S, Kuepferling M (2022)

Publication Type: Journal article

Publication year: 2022

Journal

IEEE Transactions on Magnetics Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 58

Article Number: 4002616

Journal Issue: 12

DOI: 10.1109/TMAG.2022.3217891

Abstract

Different models have been used to evaluate the interfacial Dzyaloshinskii-Moriya interaction (DMI) from the asymmetric bubble expansion method using magneto-optics. Here, we investigate the most promising candidates over a range of different magnetic multilayers with perpendicular anisotropy. Models based on the standard creep hypothesis are not able to reproduce the domain wall (DW) velocity profile when the DW roughness is high. Our results demonstrate that the DW roughness and the interface roughness of the sample layers are correlated. Furthermore, we give guidance on how to obtain reliable results for the DMI value with this popular method. A comparison of the results with Brillouin light scattering (BLS) measurements on the same samples shows that the BLS approach often results in higher measured values of DMI.

Involved external institutions

Italian National Institute of Metrology Research / Istituto Nazionale di Ricerca Metrologica (INRiM) IT Italy (IT) Università degli Studi di Perugia IT Italy (IT) École Polytechnique - Université Paris-Saclay FR France (FR) University of Leeds GB United Kingdom (GB) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE) Centre for Nanoscience and Nanotechnology (C2N) / Centre de Nanosciences et de Nanotechnologies FR France (FR) National Institute of Standards and Technology (NIST) US United States (USA) (US) Carnegie Mellon University US United States (USA) (US) Korea Research Institute of Standards and Science (KRISS) / 한국표준과학연구원 KR Korea, Republic of (KR)

How to cite

APA:

Magni, A., Carlotti, G., Casiraghi, A., Darwin, E., Durin, G., Diez, L.H.,... Kuepferling, M. (2022). Key Points in the Determination of the Interfacial Dzyaloshinskii-Moriya Interaction From Asymmetric Bubble Domain Expansion. IEEE Transactions on Magnetics, 58(12). https://doi.org/10.1109/TMAG.2022.3217891

MLA:

Magni, Alessandro, et al. "Key Points in the Determination of the Interfacial Dzyaloshinskii-Moriya Interaction From Asymmetric Bubble Domain Expansion." IEEE Transactions on Magnetics 58.12 (2022).

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