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WARTELLE Alexis

Postdoc

Contact details

Personal Website : http://

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Research activities

I'm a post-doctoral research fellow working on three-dimensional magnetic objects. Within the ANR project "XMUM" led by Guillaume Beutier, I am focusing on 3D, X-ray-based microscopy with sensitivity to magnetism.
To be more precise, my goal consists in performing Coherent Diffraction Imaging (CDI) with hard X-rays on micron-sized objects out of a magnetic metal alloy. While this method has been established for many years in structural investigation, its application to magnetism has been hampered by the weakness of magnetic signals in the hard X-ray regime.
In this context, my research benefits from the recent upgrade of the European Synchrotron Radiation Facility (ESRF), leading notably to an enhanced coherent X-ray flux. On the ID10 beamline at ESRF, my colleagues and I have recently measured X-ray resonant magnetic scattering from a ~4µm-diameter CoGd bead. This is the first step towards tomographic reconstructions of such objects, with a sensitivity for the two in-plane components of magnetization in the sample.

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Date of update May 5, 2022

Université Grenoble Alpes