Publications

• Article dans une revue

Photonic Klein Tunnelling in Silicon Topological Materials for Terahertz 6G Interconnects

Samina Mulla, Sangram Kumar Sadhu, Siddhartha Lal, Anshuman Kumar, N S Vidhyadhiraja, Zhonghua Gu, Prakash Pitchappa, Pascal Szriftgiser, Guillaume Ducournau, Abhishek Kumar

<div><p>Topological photonics enables robust light transport along engineered interfaces, but transport across a potential barrier placed within such an interface, and the range of barrier strengths over which it survives, remain largely unexplored. Here we experimentally demonstrate…

Advanced Materials, 2026, 14 p. ⟨10.1002/adma.75322⟩. ⟨hal-05845015⟩

• Article dans une revue

Enhancement of perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction in cobalt-based systems through interfacial engineering

M. Belmeguenai, T. Al Maawali, A. Bendjaballah, W. Fotso, M. G. Hafiz, M. Ramu, S. M. Chérif, N. Tiercelin, M. S. Gabor, Y. Roussigné, S. N. Piramanayagam, R. Sbiaa

Interfacial engineering provides an effective route to tailor chiral magnetic interactions in thin-film heterostructures relevant for spintronic applications. In this work, we investigate the influence of top capping layers on perpendicular magnetic anisotropy (PMA) and interfacial Dzyaloshinskii-…

Physical Review Applied, 2026, 26 (4), pp.044030. ⟨10.1103/pz1p-3rh1⟩. ⟨hal-05836412⟩

• Article dans une revue

Spatiotemporal terahertz emission nanoscopy of spintronic photocurrent

Felix Paries, Reza Rouzegar, Jiahua Cai, Mingcong Dai, Felix Selz, Johanna Koelbel, Geoffrey Lezier, Nicolas Tiercelin, Daniel Molter, Daniel M Mittleman, Georg von Freymann, Xiaojun Wu, Tom S Seifert

Capturing ultrafast spin and charge photocurrents on nanoscopic scales is essential for fundamental research in physics and engineering, as well as for future applications, such as novel spin-orbitronic devices. Accessing the fundamental dynamics driven by changes in electronic energy, linear…

Light: Science and Applications, 2026, 15, ⟨10.1038/s41377-026-02468-2⟩. ⟨hal-05835284⟩

• Pré-publication, Document de travail

Localized phonon-polaritons in natural mineral particles extend to atmospheric scales

Jeyan Bichon, Hervé Herbin, J-F Lampin, D Petitprez, Romain Peretti, S Eliet-Barois

Localized phonon-polaritons confine electromagnetic fields to subwavelength dimensions and are widely studied in engineered photonic structures. Whether this light-matter physics can arise intrinsically in naturally occurring, free-standing solid particles has remained unexplored. Here we show that…

2026. ⟨hal-05796051⟩

• Article dans une revue

A trick of the tail: how electrostatics helps a DNA repair enzyme to localize on nucleosomes

Safwen Ghediri, Guillaume Brysbaert, Fabrizio Cleri, Ralf Blossey

Electrostatic interactions are key to the recognition processes of proteins and DNA and have been previously documented for the action of repair enzymes. Uracil-DNA glycosylase (UDG) is the first in a sequence of enzymes that act in the base-excision repair process (BER) and whose task is the…

The Journal of Chemical Physics, 2026, 165 (13), pp.134904. ⟨10.1063/5.0344831⟩. ⟨hal-05785602⟩

• Article dans une revue

Storing sensor events in the interconnection strength of conducting polymer dendrites

Antoine Baron, Bilel Hafsi, Enrique H. Balaguera, Sébastien Pecqueur

If electronics drives only electrons to charge electrodes, natural systems learn by moving matter to evolve. Morphogenesis in sessile organisms can be seen both as a fabrication process and as an operative mechanism. However, intricating manufacturing and programming functionalities in electronic…

Neuromorphic Computing and Engineering, 2026, ⟨10.1088/2634-4386/aeaf79⟩. ⟨hal-05776475⟩

• Article dans une revue

High-performance solid-state symmetric supercapacitors based on porous Fe-Cr-O structures derived from stainless steel

Mamy Diaby, Idoumou Bouya Ahmed, Ahmed Addad, Sabine Szunerits, Rabah Boukherroub, Ibtissem Ben Assaker

Electrochimica Acta, 2026, 573, pp.149167. ⟨10.1016/j.electacta.2026.149167⟩. ⟨hal-05663678⟩

• Article dans une revue

How to select the right current collector and dielectric films for the next-generation high-voltage 3D electrolytic micro-capacitors?

Bukola Jolayemi, Chiara Crivello, Jérémie Chaillou, Isabelle Roch-Jeune, Bhupendra Yadav, Lydia Karmazin, Imane Nhalia, Kevin Robert, Maxime Hallot, Marielle Huvé, Martine Frere, Wan-Yu Tsai, Pascal Roussel, Christophe Lethien

<div><p>2 O 5 dielectric TaN current collector and ALD</p></div>

Electrochimica Acta, 2026, 573, ⟨10.1016/j.electacta.2026.149220⟩. ⟨hal-05684998⟩

• Article dans une revue

Hydrodynamic performance analysis and optimization of a concave-bladed Archimedes screw turbine using coupled analytical modeling and CFD simulation

Chouaib Sayaghi, Mohammed Remaidi, Hicham Mastouri, Amine Ennawaoui, Othmane Marbouh, Mohamed El Jouad, Chouaib Ennawaoui

This study presents an innovative analytical-numerical model for the optimization of low-head Archimedes screw turbines, based on the synergistic coupling between blade concavity and screw pitch. Unlike conventional approaches that treat these parameters in isolation, existing models fail to…

Ocean Engineering, 2026, 366, pp.127491. ⟨10.1016/j.oceaneng.2026.127491⟩. ⟨hal-05823896⟩

• Autre publication scientifique

Kick-off du projet CNRS Lithoverde: LITHOgraphie Verte à base de résine Eco-Responsable pour Dispositifs Microelectroniques

Anne-Sophie Vaillard, Pascal Tilmant, Elisabeth Galopin, Stephane Beaussart, Yves Deblock

2026. ⟨hal-05777966⟩