Publicaciones

• Brevet

Nanometer sized structures grown by pulsed laser deposition

Basma El Zein, Yao Yingbang, El Hadj Dogheche, Boulfrad Samir, Jabbour Ghassan

Nanometer sized materials can be produced by exposing a target to a laser source to remove material from the target and deposit the removed material onto a surface of a substrate to grow a thin film in a vacuum chamber

France, Patent n° : US11004990 (B2) 2021-05-11. flagship_materials. 2021, N° de priorité : US201261719666P 20121029 - N° de demande : US201314439655 20131029. ⟨hal-03999912⟩

• Communication dans un congrès

Towards III-V semiconductor-based artificial graphene

Nathali. A. Franchina Vergel, L. Christiaan Post, Davide Sciacca, Maxime Berthe, Francois Vaurette, Yannick Lambert, Dmitri Yarekha, David Troadec, Christophe Coinon, Guillaume Fleury, Abhishek Juyal, Julien Renard, Tao Xu, Ludovic Desplanque, Xavier Wallart, Daniel Vanmaekelbergh, Christophe Delerue, Bruno Grandidier

We present the fabrication and characterization of III-V semiconductor-based samples designed to mimic 2D material electronic properties thanks to a nanometer-scale honeycomb potential. STM/STS results demonstrate that a well reconstructed surface is recovered after processing and that the...

Compound Semiconductor Week2021, CSW 2021, May 2021, Stockholm, Suède., May 2021, Stockholm, Sweden. ⟨hal-04485771⟩

• Communication dans un congrès

InGaAs/Ga(As)Sb nanoscale tunnel junctions grown by selective area molecular beam epitaxy

Alexandre Bucamp, Christophe Coinon, Sylvie Lepilliet, David Troadec, Gilles Patriarche, X. Wallart, L. Desplanque

Compound Semiconductor Week 2021, CSW 2021, May 2021, Stockholm (Suède), Sweden. ⟨hal-04440037⟩

• Article dans une revue

Temperature-sensitivity of two microwave HEMT devices: AlGaAs/GaAs vs. AlGaN/GaN heterostructures

Mohammad Abdul Alim, Abu Zahed Chowdhury, Shariful Islam, Christophe Gaquière, Giovanni Crupi

The goal of this paper is to provide a comparative analysis of the thermal impact on the microwave performance of high electron-mobility transistors (HEMTs) based on GaAs and GaN technologies. To accomplish this challenging goal, the relative sensitivity of the microwave performance to changes in...

Electronics, 2021, 10 (9), pp.1115. ⟨10.3390/electronics10091115⟩. ⟨hal-03278479⟩

• Article dans une revue

Broadband sub-diffraction and ultra-high energy density focusing of elastic waves in planar gradient-index lenses

Jinfeng Zhao, Xiaodong Cui, Bernard Bonello, Bahram Djafari-Rouhani, Weitao Yuan, Yongdong P Pan, Jie Ren, Xiaoqing Zhang, Zheng Zhong

We demonstrate experimentally and theoretically the broadband sub-diffraction and ultra-high energy density focusing of elastic wave inside planar gradient-index (GRIN) plate lenses based on thickness variation. The full width at half maximum is ~0.40 times the minimum wavelength inside the lens λ0...

Journal of the Mechanics and Physics of Solids, 2021, 150, pp.104357. ⟨10.1016/j.jmps.2021.104357⟩. ⟨hal-03141945⟩

• Article dans une revue

Concept of vertical liquid metal actuated cyclo‐olefin‐polymer based embedded 360° steerable Yagi‐Uda antenna

Denis Le Goff, Yves Quéré, Azar Maalouf, Eric Rius, Philippe Coquet, Edwin Hang Tong Teo

The concept of a reconfigurable 5GHz microfluidically actuated antenna with beam forming, steering and hoping in a 360° angular range, is presented in this paper. Its architecture is that of a Yagi-Uda array. Its actuation relies on the electrically controlled vertical displacement of liquid metal...

Microwave and Optical Technology Letters, 2021, 63 (5), pp.1514-1519. ⟨10.1002/mop.32772⟩. ⟨hal-03121599⟩

• Article dans une revue

Band gap enhancement in periodic frames using hierarchical structures

Vinícius Dal Poggetto, Federico Bosia, M. Miniaci, Nicola Pugno

The quest for novel designs for lightweight phononic crystals and elastic metamaterials with wide low-frequency band gaps has proven to be a significant challenge in recent years. In this context, lattice-type materials represent a promising solution, providing both lightweight properties and...

International Journal of Solids and Structures, 2021, 216, pp.68-82. ⟨10.1016/j.ijsolstr.2021.01.003⟩. ⟨hal-03146564⟩

• Article dans une revue

Abnormal topological refraction into free medium at sub-wavelength scale in valley phononic crystal plates

Linyun Yang, Kaiping Yu, Bernard Bonello, Bahram Djafari-Rouhani, Wei Wang, Ying Wu

In this work we propose a topological valley phononic crystal plate and we extensively investigate the refraction of valley modes into the surrounding homogeneous medium. This phononic crystal includes two sublattices of resonators (A and B) modeled by mass-spring systems. We show that two edge...

Physical Review B, 2021, 103 (18), pp.184303. ⟨10.1103/PhysRevB.103.184303⟩. ⟨hal-03219859⟩

• Article dans une revue

Entropy production and Onsager reciprocal relations describing the relaxation to equilibrium in stochastic thermodynamics

Stefano Giordano

We study the relation between stochastic thermodynamics and non-equilibrium thermodynamics by evaluating the entropy production and the relation between fluxes and forces in a harmonic system with N particles in contact with N different reservoirs. We suppose that the system is in a non-equilibrium...

Physical Review E , 2021, 103 (5), 052116,13 p. ⟨10.1103/PhysRevE.103.052116⟩. ⟨hal-03236065⟩

• Article dans une revue

Facile synthesis of fluorine-free, hydrophobic, and highly transparent coatings for self-cleaning applications

Abderrahmane Hamdi, Julie Chalon, Pascal Laurent, Benoit Dodin, El Hadj Dogheche, Philippe Champagne

Non-fluorinated coatings have recently emerged as a new approach to avoid contamination on transparent surfaces. This research work concerns the synthesis of highly transparent, hydrophobic, durable, and self-cleaning coatings as an alternative to fluorine-based coatings used on glass. The...

Journal of Coatings Technology and Research, 2021, 18, pp.807-818. ⟨10.1007/s11998-020-00444-y⟩. ⟨hal-03149495⟩