Size-dependent mobility of skyrmions beyond pinning in ferrimagnetic GdCo thin films

Autor: Léo Berges, Eloi Haltz, Sujit Panigrahy, Sougata Mallick, Raphaël Weil, Stanislas Rohart, Alexandra Mougin, João Sampaio

Publikováno v: Physical Review B. 106

Magnetic skyrmions are swirling magnetic textures that can be efficiently driven with spin-orbit torques with a deflected trajectory. However, pinning slows skyrmions down and alters their trajectory, which prevents a quantitative comparison to analy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9bac64226f75d89f8fbc452f5ac21d1
https://doi.org/10.1103/physrevb.106.144408

Domain wall dynamics in antiferromagnetically coupled double-lattice systems

Autor: Alexandra Mougin, Eloi Haltz, Joao Sampaio, Léo Berges, Sachin Krishnia

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2021, 103 (014444), ⟨10.1103/PhysRevB.103.014444⟩

In ferromagnetic materials, the rich dynamics of magnetic domain walls (DWs) under a magnetic field or current has been successfully described using the well-known $q\ensuremath{-}\ensuremath{\varphi}$ analytical model. We demonstrate here that this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42e4bf705167189909328f14377523d6
https://doi.org/10.1103/physrevb.103.014444

Evolution of structural and magnetic properties of multifunctional bismuth iron garnets upon Ca and Y doping

Autor: Adrien Teurtrie, Laura Bocher, Niels Keller, Alexandre Gloter, Alexandra Mougin, E. Popova

Publikováno v: Physical Review Materials
Physical Review Materials, American Physical Society, 2020, 4 (6), ⟨10.1103/PhysRevMaterials.4.064401⟩

A multiscale approach is reported to understand the influence of the Ca and Y co-substitution in Bi-rich iron garnet thin films. Recently, it has been demonstrated that site-selective co-substitution of ${\mathrm{Ca}}^{2+}$ and ${\mathrm{Y}}^{3+}$ in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97246e7f1dc73eb84c4744a4efa2c669
https://hal.archives-ouvertes.fr/hal-02992690/document

Spin pumping as a generic probe for linear spin fluctuations: demonstration with ferromagnetic and antiferromagnetic orders, metallic and insulating electrical states

Autor: C. Gomez, R. L. Seeger, Alexandra Mougin, D. T. Dekadjevi, Raphaël Weil, W. Jahjah, David Spenato, Serge Gambarelli, Vincent Baltz, M. Rubio-Roy, Jean-Philippe Jay, L. Frangou, Stéphane Auffret, O. Gladii, G. Forestier

Publikováno v: Applied Physics Express
Applied Physics Express, IOPScience-Japan Society of Applied Physics, 2019, 12 (2), pp.023001. ⟨10.7567/1882-0786/aaf4b2⟩
Applied Physics Express, 2019, 12 (2), pp.023001. ⟨10.7567/1882-0786/aaf4b2⟩

International audience; We investigated spin injection by spin pumping from a spin-injector(NiFe) into a spin-sink to detect spin fluctuations in the spin-sink. By scanning the ordering-temperature of several magnetic transitions, we found that enhan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef50ca1e5b27004557658ab807dfedc7
https://hal.archives-ouvertes.fr/hal-02331791/document

Deviations from bulk behavior in TbFe(Co) thin films: Interfaces contribution in the biased composition

Autor: C. Bachelet, R. Weil, A. Pointillon, O. Rousseau, Alexandra Mougin, Z. Li, Yves Dumont, Eloi Haltz, E. Briand, Joao Sampaio, Katia March, N. Brun

Publikováno v: Physical Review Materials
Physical Review Materials, American Physical Society, 2018, 2 (10), ⟨10.1103/PhysRevMaterials.2.104410⟩

International audience; Ferrimagnetic TbFe or TbFeCo amorphous alloy thin films have been grown by coevaporation in ultrahigh vacuum. They exhibit an out-of-plane magnetic anisotropy up to their Curie temperature with a nucleation and propagation rev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4356bb816a0415854e5052a266f5074
https://doi.org/10.1103/physrevmaterials.2.104410