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Article dans une revue

Near-field scanning millimeter-wave microscope operating inside a scanning electron microscope: towards quantitative electrical nanocharacterization

Petr Polovodov, Didier Theron, Clément Lenoir, D. Deresmes, Sophie Eliet, Christophe Boyaval, Gilles Dambrine, Kamel Haddadi

The main objectives of this work are the development of fundamental extensions to the existing scanning microwave microscopy (SMM) technology to achieve quantitative complex impedance measurements at the nanoscale. We developed an SMM operating up to 67 GHz inside a scanning electron microscope…

Applied Sciences, 2021, 11 (6), pp.2788. ⟨10.3390/app11062788⟩. ⟨hal-03320954v2⟩

Article dans une revue

Optimization of Reactive-Ion Etching (RIE) parameters to maximize the lateral etch rate of silicon using SF6/N2 gas mixture: An alternative to etching Si in MEMS with Au components

Munique Kazar Mendes, Cécile Ghouila-Houri, Serria Hammami, Thomas Arnoult, Philippe Pernod, Abdelkrim Talbi

In this work, the effects of the N2 addition to the SF6 plasma used in the isotropic silicon etching of Microelectromechanical systems (MEMS) with Au components are investigated. A four-variables Doehlert design was implemented for optimizing the etching parameters (power, pressure, gas flow rate,…

Materials Letters, 2021, 285, pp.129058. ⟨10.1016/j.matlet.2020.129058⟩. ⟨hal-03330078⟩

Article dans une revue

Oxygen vacancy engineering of TaO$_x$-based resistive memories by Zr doping for improved variability and synaptic behavior

João Palhares, Yann Beilliard, F. Alibart, Everton Bonturim, Daniel de Florio, Fabio Fonseca, Dominique Drouin, Andre Ferlauto

Resistive switching (RS) devices are promising forms of non-volatile memory. However, one of the biggest challenges for RS memory applications is the device-to-device (D2D) variability, which is related to the intrinsic stochastic formation and configuration of oxygen vacancy (V$_O$) conductive…

Nanotechnology, 2021, 32 (40), pp.405202. ⟨10.1088/1361-6528/ac0e67⟩. ⟨hal-03539056⟩

Communication dans un congrès

Nanoprobe study of the electric field driven insulator-to-metal transition in GaMo4S8

H. Koussir, Isabelle Lefebvre, Maxime Berthe, B. Grandidier, Pascale Diener, J. Tranchant, Benoit Corraze, Etienne Janod, Laurent Cario

The resistive switching observed under electric pulses in Mott materials has a high potential for micro and nanoelectronics. Here we report on the study of the resistive switching observed at the surface of single crystals of the canonical Mott semiconductor GaMo4S8. The study is made using a…

Journées du GDR Nanosciences with near-field microscopy under ultra high vacuum 2021, Nov 2021, Toulouse, France. ⟨hal-03606122⟩

Article dans une revue

MMIC Vector Topology Enabling Multi RF Functionalities for 5G and Beyond

Christophe Loyez, Michael Bocquet, Kamel Haddadi

This paper presents a vector topology of a monolithic microwave integrated circuit (MMIC) capable of performing several radiofrequency (RF) functionalities essential for future wireless communications and geolocation in the millimeter frequency band. The proposed circuit can address several usage…

IEEE Access, 2021, 9, pp.114418-114427. ⟨10.1109/ACCESS.2021.3098179⟩. ⟨hal-03334163⟩

Communication dans un congrès

Cavity flow controlled with an array of magneto-mechanical micro-valves

Thomas Arnoult, Cécile Ghouila-Houri, Colin Leclercq, Aurélien Mazzamurro, Romain Viard, Eric Garnier, Denis Sipp, Alain Merlen, Abdelkrim Talbi, Philippe Pernod

This paper presents and discusses micro-magneto-mechanical valves designed for cavity flow control. Realized using microfabrication techniques and rapid prototyping, the micro-valves exhibit a small footprint and adequate performances for low-speed cavity flow control. An array of 15 micro-valves…

2021 IEEE Sensors, Oct 2021, Sydney, Australia. pp.1-4, ⟨10.1109/SENSORS47087.2021.9639871⟩. ⟨hal-03501259⟩

Article dans une revue

H-Band Substrate-Integrated Discrete-Lens Antenna for High Data Rate Communication Systems

Kossaila Medrar, Loïc Marnat, Laurent Dussopt, Cybelle Belem-Gonçalves, Guillaume Ducournau, Cyril Luxey, Frédéric Gianesello

A substrate-integrated discrete-lens antenna manufactured in standard printed-circuit-board (PCB) technology is demonstrated in H-band (225-325 GHz). The arrays composed of phase-shifting unit cells and a waveguide-fed planar focal source are designed on a single PCB stack with five metal layers…

IEEE Transactions on Antennas and Propagation, 2021, 69 (7), pp.3677-3688. ⟨10.1109/TAP.2020.3044382⟩. ⟨hal-03546303⟩

Article dans une revue

Alginate Nanoparticles Enhance Anti-Clostridium perfringens Activity of the Leaderless Two-Peptide Enterocin DD14 and Affect Expression of Some Virulence Factors

H. Zgheib, Y. Belguesmia, Rabah Boukherroub, D. Drider

Here, we report a novel approach to improve the anti-Clostridium perfringens activity of the leaderless two-peptide enterocin 14 (EntDD14), produced by Enterococcus faecalis 14. This strategy consists of loading EntDD14 onto alginate nanoparticles (Alg NPs), which are made of a safe polymer. The…

Probiotics and Antimicrobial Proteins, 2021, 13 (4), pp.1213-1227. ⟨10.1007/s12602-020-09730-y⟩. ⟨hal-03546311⟩

Article dans une revue

Cobalt sulfide-reduced graphene oxide: An efficient catalyst for the degradation of rhodamine B and pentachlorophenol using peroxymonosulfate

Lylia Amirache, Fatiha Barka-Bouaifel, Priyakshree Borthakur, Manash R. Das, Hania Ahouari, Herve Vezin, Alexandre Barras, Baghdad Ouddane, Sabine Szunerits, Rabah Boukherroub

In this study, cobalt sulfide-reduced graphene oxide (CoS-rGO) nanocomposite was prepared by a solvothermal route and its structure, morphology and composition were assessed using various techniques, including transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR),…

Journal of Environmental Chemical Engineering, 2021, 9 (5), pp.106018. ⟨10.1016/j.jece.2021.106018⟩. ⟨hal-03332354⟩

Article dans une revue

Bandpass NGD function design for 5G microwave signal delay synchronization application

Sébastien Lalléchère, Lala Rajaoarisoa, Laurent Clavier, Raul Sanchez Galan, Blaise Ravelo

This paper introduces a design method of simple bandpass (BP) negative group delay (NGD) topology. The fundamental specifications of BP NGD function are defined. The NGD passive topology consists of parallel resistance associated with an open-ended microstrip stub. The NGD properties and…

Comptes Rendus. Physique, 2021, 22 (S1), pp.53-71. ⟨10.5802/crphys.68⟩. ⟨hal-03274859⟩