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REXS 2025 Almadraba

6–10 Oct 2025
Hotel Almadraba Park (Roses, Girona, Spain)
Europe/Madrid timezone

Session

Talks Friday Morning

T08
10 Oct 2025, 09:00
Hotel Almadraba Park (Roses, Girona, Spain)

Hotel Almadraba Park (Roses, Girona, Spain)

Avinguda de José Díaz Pacheco, 70, 17480 Roses, Girona

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  1. 65. Polarisation Analysis In Coherent X-ray Scattering Measurements (Chair: Felix Buettner)
    Guillaume Beutier (Univ Grenoble Alpes - SIMaP)
    10/10/2025, 09:00
    Oral

    Methods using coherent X-ray beams have blossomed with 3rd generation facilities and
    are now benefiting from the huge brilliance increase of 4th generation facilities. The interest in combining the REXS contrast with X-ray coherence has been recognised very early [1].
    Coherence-based methods rely on the measurement of a portion of the reciprocal space with a 2D detector. Data analysis tools,...

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  2. 73. X-Ray Beams with Orbital Angular Momentum: Resonant Scattering and Coherent Imaging (Chair: Felix Buettner)
    Maurizio Sacchi (Institut des NanoSciences de Paris (INSP, CNRS - Sorbonne Université) and Synchrotron SOLEIL)
    10/10/2025, 09:25
    Oral

    The interaction of polarized light beams with magnetic materials defines the rich set of tools in magneto-optics, covering photon energies from infra-red to hard x-rays. Circular polarization imprints a well-defined handedness on the photon beam, associated with a spin angular momentum (SAM) σ = ±1. It remains less common to exploit the orbital angular momentum (OAM) of value L (ϵ ℤ) carried...

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  3. 69. Soft X-ray Transmission Holography at ESRF (Chair: Felix Buettner)
    Flora YAKHOU-HARRIS (ESRF)
    10/10/2025, 09:50
    Oral

    The soft X-ray beamline at ESRF (ID32) provides X-rays in the energy range 400 eV – 1800 eV to perform polarization dependent spectroscopic studies of magnetic and electronic properties of matter, with the main end-stations specialized in X-ray Resonant Inelastic Scattering (RIXS) and X-ray Magnetic Circular Dichroism (XMCD) measurements. In addition, a small side-station located in the...

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  4. 81. Magnetic nano-domain microscopy and topology-sensitive modelling in Fe$_3$GeTe$_2$ (Chair: Martin Bluschke)
    Moritz Hoesch (Deutsches Elektronen-Synchrotron DESY)
    10/10/2025, 10:35
    Oral

    ABSTRACT

    Fe$_3$GeTe$_2$ (FGT) is a layered ferromagnetic solid with a Curie temperature of TC ≈ 205K. It is a layered material with out-of-plane magnetic anisotropy. We have performed microscopy investigations of the magnetic nano-domain structures in thin flakes of FGT. The data are acquired using the Fourier Transform Holography (FTH) technique with circular dichroism contrast at the...

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  5. 98. X-ray/XUV Coherence Isolated Diffraction Imaging (Chair: Martin Bluschke)
    Arnab Sarkar (IMDEA Nanociencia)
    10/10/2025, 11:00
    Oral

    Coherent X-ray imaging is widely used to image nanoscale structures with high spatial resolution [1], and more recently to spatiotemporal dynamics [2]. However additional stochastic dynamics or birefringence of the sample lead to secondary scattering terms in diffractive signals. At high intensities in pump-probe experiments it is even possible to generate additional non-linear frequency...

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  6. 86. Spectroscopic Bragg Coherent Diffraction Imaging of Single Nanoparticles (Chair: Martin Bluschke)
    Thomas Sarrazin (ESRF)
    10/10/2025, 11:25
    Oral

    Characterizing nanoscale displacement fields, compositional variations, and defects in heterogeneous catalysts remains a central challenge in materials science and energy‐conversion research. Bragg coherent diffraction imaging (BCDI) [1] can deliver three-dimensional strain maps with nanometre resolution, yet chemical inhomogeneities often blur the distinction between strain and compositional...

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  7. 76. Lensless coherent imaging of nanoscale magnetic domains in 2D van-der-Waals materials (Chair: Martin Bluschke)
    Daniel Pérez Salinas
    10/10/2025, 11:50
    Oral

    Here, we present lensless coherent soft X-ray imaging of magnetic domains [1] in two-dimensional (2D) van der Waals (vdW) materials[2] at low temperatures and under strong magnetic fields. By integrating micron-scale flakes of 2D materials onto nano-fabricated holography masks—either through deterministic transfer in an inert-air glove box or via focused ion beam lamella preparation— we expand...

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  8. 127. Final Wrapp up - Discussion and REXS conference outlook (Local Committee Chairs (G. Subias, J. Herrero, M. Valvidares) and International Committee Chairs (N. Jaouen, C. Mazzolli, S. Francoual, S. Roy))
    10/10/2025, 12:15
    Oral

    Local and International Committee Chairs

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