Resonant dynamics of three-dimensional skyrmionic textures in thin film multilayers

Autor: Titiksha Srivastava, Yanis Sassi, Fernando Ajejas, Aymeric Vecchiola, Igor Ngouagnia Yemeli, Hervé Hurdequint, Karim Bouzehouane, Nicolas Reyren, Vincent Cros, Thibaut Devolder, Joo-Von Kim, Grégoire de Loubens

Publikováno v: APL Materials, Vol 11, Iss 6, Pp 061110-061110-12 (2023)

Skyrmions are topological magnetic solitons that exhibit a rich variety of dynamics, such as breathing and gyration, which can involve collective behavior in arrangements like skyrmion lattices. However, such localized excitations typically lie in th

Externí odkaz: https://doaj.org/article/350d5802fbf14473a53a23a6cc2b82e1

Pattern generation and symbolic dynamics in a nanocontact vortex oscillator

Autor: Myoung-Woo Yoo, Damien Rontani, Jérémy Létang, Sébastien Petit-Watelot, Thibaut Devolder, Marc Sciamanna, Karim Bouzehouane, Vincent Cros, Joo-Von Kim

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)

Controlling chaotic behavior in spintronic devices is promising for signal-processing applications. Here, the authors unveil the symbolic patterns hidden in the magnetization dynamics of a nanocontact vortex oscillator and detail how to control chaos

Externí odkaz: https://doaj.org/article/e1aaab2fcf6b429fa9551d954e659447

Measuring the dispersion relations of spin wave bands using time-of-flight spectroscopy

Autor: Claude Chappert, Thibaut Devolder, Giacomo Talmelli, Florin Ciubotaru, S. M. Ngom, Christoph Adelmann

Publikováno v: Physical Review B. 103

We develop a generic all-inductive procedure to measure the band structure of spin waves in a magnetic thin stripe. In contrast to existing techniques, our method works even if several spin wave branches coexist in the investigated frequency interval

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::301c3219b6ea4cbf99b8d13443435d71
https://doi.org/10.1103/physrevb.103.214431

Spin-torque induced wall motion in perpendicularly magnetized discs: Ballistic versus oscillatory behavior

Autor: Sebastien Couet, Siddharth Rao, Paul Bouquin, Gouri Sankar Kar, Thibaut Devolder, Joo-Von Kim, Olivier Bultynck

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2021, 103 (22), ⟨10.1103/PhysRevB.103.224431⟩

We use time-resolved measurement and modeling to study the spin-torque induced motion of a domain wall in perpendicular anisotropy magnets. In disc of diameters between 70 and 100 nm, the wall drifts across the disc with pronounced back-and-forth osc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4258076d16e2ea0dc5b3b0f99c88eef7
https://hal.archives-ouvertes.fr/hal-03323810

Imaging non-collinear antiferromagnetic textures via single spin relaxometry

Autor: Vincent Cros, W. Akhtar, J.-P. Adam, S. Chouaieb, Karim Bouzehouane, Rana Tanos, Nicolas Reyren, Vincent Jacques, William Legrand, Florentin Fabre, Aurore Finco, Joo-Von Kim, Angela Haykal, Thibaut Devolder, Isabelle Robert-Philip, Fernando Ajejas

Publikováno v: Nature Communications
Nature Communications, 2021, 12 (1), pp.767. ⟨10.1038/s41467-021-20995-x⟩
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.767. ⟨10.1038/s41467-021-20995-x⟩

Antiferromagnetic materials are promising platforms for next-generation spintronics owing to their fast dynamics and high robustness against parasitic magnetic fields. However, nanoscale imaging of the magnetic order in such materials with zero net m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4be1aceff6f853b34f37f2bffbf2a5f6
https://hal.science/hal-03177332/file/s41467-021-20995-x.pdf