84 citations · 330 across the 10 of their papers we have counts for
10 papers
Magnetic X-ray imaging using a single polarization and multimodal-ptychography
Marisel Di Pietro Martínez, Alexis Wartelle, Nicolas Mille +5
Polarized X-rays allow for imaging birefringent or dichroic properties of materials with nanometric resolution. To disentangle these properties from the electronic density, either…
Small-angle X-ray resonant magnetic scattering at the Co M and L edges observed with photoemission electron microscopy
Alexis Wartelle, Marisel Di Pietro Martínez, Olivier Fruchart +2
X-ray magnetic circular dichroism is an efficient contrast mechanism allowing for a direct sensitivity to magnetization. Combined with an imaging technique such as photoemission el…
Caustic spin wave beams in soft, thin films: properties and classification
Alexis Wartelle, Franz Vilsmeier, Takuya Taniguchi +1
In the context of wave propagation, caustics are usually defined as the envelope of a finite-extent wavefront; folds and cusps in a caustic result in enhanced wave amplitudes. Here…
Three-dimensional tomographic imaging of the magnetization vector field using Fourier transform holography
Marisel Di Pietro Martínez, Alexis Wartelle, Carlos Herrero Martínez +11
In recent years, interest in expanding from 2D to 3D systems has grown in the magnetism community, from exploring new geometries to broadening the knowledge on the magnetic texture…
Bloch-point-mediated topological transformations of magnetic domain walls in cylindrical nanowires
Olivier Fruchart, A Wartelle, B Trapp +11
Cylindrical nanowires made of soft magnetic materials, in contrast to thin strips, may host domain walls of two distinct topologies. Unexpectedly, we evidence experimentally the dy…
The skyrmion-bubble transition in a ferromagnetic thin film
Anne Bernand-Mantel, Lorenzo Camosi, Alexis Wartelle +3
Magnetic skyrmions and bubbles, observed in ferromagnetic thin films with perpendicular magnetic anisotropy, are topological solitons which differ by their characteristic size and…
Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes
Michal Staňo, Sandra Schaefer, Alexis Wartelle +13
We report the imaging of magnetic domains in ferromagnetic CoNiB nanotubes with very long aspect ratio, fabricated by electroless plating. While axial magnetization is expected for…
Quantitative analysis of shadow X-ray Magnetic Circular Dichroism Photo-Emission Electron Microscopy
S. Jamet, S. Da Col, N. Rougemaille +10
Shadow X-ray Magnetic Circular Dichroism Photo-Emission Electron Microscopy (XMCD-PEEM) is a recent technique, in which the photon intensity in the shadow of an object lying on a s…
Broadband Setup for Magnetic-Field-Induced Domain Wall Motion in Cylindrical Nanowires
Alexis Wartelle, Christophe Thirion, Raja Afid +9
In order to improve the precision of domain wall dynamics measurements, we develop a coplanar waveguide-based setup where the domain wall motion should be triggered by pulses of ma…
Molecular Quantum Magnetism in LiZn2Mo3O8
M. Mourigal, W. T. Fuhrman, J. P. Sheckelton +5
Inelastic neutron scattering for temperatures below 30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from…