Publications

• Pré-publication, Document de travail

Competing effects of charge-carrier and impurity scattering limiting phonon heat conduction in heavily-doped silicon

Raja Sen, Juan Carlos Acosta Abanto, Mélanie Brouillard, Séverine Gomès, Jean-François Robillard, Alessandro Ciavatta, Lorenzo Paulatto, Nathalie Vast, Jérôme Saint-Martin, Jelena Sjakste, Pierre-Olivier Chapuis

With respect to undoped semiconductors, thermal transport by phonons is limited by two additional mechanisms when doping increases: charge-carrier and impurity scattering. Previous works provided contradicting conclusions on the dominant doping-induced scattering mechanism in silicon. In this work…

2026. ⟨hal-05451267⟩

• Article dans une revue

On the importance of Ni–Au–Ga interdiffusion in the formation of a Ni–Au/p-GaN ohmic contact

Jules Duraz, Hassen Souissi, Maksym Gromovyi, David Troadec, Téo Baptiste, Géraldine Hallais, Nathaniel Findling, Phuong Vuong, Rajat Gujrati, Thi May Tran, Jean-Paul Salvestrini, Maria Tchernycheva, Suresh Sundaram, Abdallah Ougazzaden, Gilles Patriarche, Sophie Bouchoule

High-resolution transmission electron microscopy (TEM) coupled to energy dispersive X-ray spectroscopy (EDX) is used to clarify the exact role of Ni-Au-Ga interdiffusion mechanisms taking place during rapid thermal annealing under an oxygen atmosphere of a Ni-Au/p-GaN contact. It is shown that…

Journal of Applied Physics, 2026, 139 (2), pp.025102. ⟨10.1063/5.0295857⟩. ⟨hal-05473565v2⟩

• Article dans une revue

Comment on “Influence of layer thickness on time domain Brillouin scattering oscillation amplitude in multilayer films” [J. Appl. Phys. 136, 225302 (2024)]

Simon Ayrinhac, Arnaud Devos, Benoît Rufflé, Marie Foret

Picosecond acoustics allows for the probing of multilayered nanometric structures, with applications in various fields of fundamental research. In a recent study, Zhang et al.1 have reexamined the optical cavity effect that impacts time-domain Brillouin acoustic spectroscopy (TDBS) in such systems…

Journal of Applied Physics, 2026, 139, pp.016101. ⟨10.1063/5.0284277⟩. ⟨hal-05472974⟩

• Communication dans un congrès

DeeCLIP: A Robust and Generalizable Transformer-Based Framework for Detecting AI-Generated Images

Mamadou Keita, Wassim Hamidouche, Hessen Bougueffa Eutamene, Abdelmalik Taleb-Ahmed, Abdenour Hadid

This paper introduces DeeCLIP, a novel framework for detecting AI-generated images using CLIP-ViT and fusion learning. Despite significant advancements in generative models capable of creating highly photorealistic images, existing detection methods often struggle to generalize across different…

Advanced Concepts for Intelligent Vision Systems (ACIVS 2025), Jun 2025, Tokyo, Japan. pp.146-158, ⟨10.1007/978-3-032-07343-3_12⟩. ⟨hal-05473197⟩

• Article dans une revue

Steerable Thin-Film Electrode Array for Cochlear Implantation: Design and Development for Future Atraumatic Insertion

Ahmad Itawi, Bacem Zribi, Prabhakar Sidambaram, Thanh Hang Tran, Guillaume Tourrel, Renato Torres, Sofiane Ghenna, Sébastien Grondel, Yann Nguyen, Cedric Plesse, Eric Cattan

During cochlear implant surgery, standard electrode arrays are inserted into the scala tympani to stimulate the spiral ganglion cells and rehabilitate hearing in deaf patients. However, conventional electrode arrays' stiffness and passive nature lead to potential trauma or incomplete insertion…

Sensors and Actuators Reports, 2026, 11, pp.100447. ⟨10.1016/j.snr.2026.100447⟩. ⟨hal-05488634⟩

• Article dans une revue

Mo-enhanced passivity of stainless steels studied at metal/oxide interfaces by DFT atomistic modeling

Xian Huang, Dominique Costa, Vincent Maurice, Philippe Marcus

Applied Surface Science, 2026, 716, ⟨10.1016/j.apsusc.2025.164709⟩. ⟨hal-05322240⟩

• Article dans une revue

0.53 mΩ.cm 2 /592 V High Breakdown Voltage GaN-on-Sapphire Schottky Diodes Without Edge Termination

Hugo Bouillaud, Beatriz Orfao, Etienne Okada, Yannick Roelens, Malek Zegaoui, Mohammed Zaknoune

In this letter, we report high-performance Pt/GaN quasi-vertical Schottky barrier diodes on sapphire substrate. With a 5 μm drift layer and a highly controlled fabrication process, the devices demonstrate an extremely low on-resistance of 0.53 mΩ.cm² while exhibiting a high breakdown voltage of 592…

IEEE Electron Device Letters, 2026, pp.1-1. ⟨10.1109/LED.2026.3652934⟩. ⟨hal-05484994⟩

• Article dans une revue

Compact segmented meta-liners for enhanced acoustic absorption with grazing flow

Yang Meng, Thomas Humbert, Vicente Romero-García, Jean-Philippe Groby, Marc Versaevel, Jacky Mardjono, Gwénaël Gabard

Applied Acoustics, 2026, 241, pp.111040. ⟨10.1016/j.apacoust.2025.111040⟩. ⟨hal-05314429⟩

• Autre publication scientifique

Advances in Historical Studies [Editor in Chief 15/1]

Raffaele Pisano

2026. ⟨hal-05480622⟩

• Article dans une revue

Pyrochlore nanomineralogy questions the immobility of niobium during tropical weathering

Quentin Bollaert, Mathieu Chassé, Nicolas Menguy, Corentin Le Guillou, Artur Bastos Neto, David Troadec, Laurence Galoisy, Georges Calas

The origin of the mobility of low-solubility elements such as niobium during supergene weathering remains elusive, despite growing evidence, especially in strongly weathered regolith. In the critical zone, the low mobility of these high field strength elements (HFSEs) is assigned to the resistance…

Geology, 2026, Geology, 54 (1), pp.92-96. ⟨10.1130/g53465.1⟩. ⟨hal-05394829⟩