Publications

• Article dans une revue

Modeling of access resistances and channel temperature estimation for GaN HEMT

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

Accurate prediction of resistances at the transistor’s access zone and their temperature dependency are very important, since the current flow to the device depends on that region. In this paper, we have modeled the access resistances and have verified their temperature dependency with the…

Journal of Thermal Analysis and Calorimetry, 2022, 147, pp.10991-10998. ⟨10.1007/s10973-022-11371-y⟩. ⟨hal-03670320⟩

• Article dans une revue

Non-Hermitian skin effect in a phononic beam based on piezoelectric feedback control

Yabin Jin, Wenxin Zhong, Runcheng Cai, Xiaoying Zhuang, Yan Pennec, Bahram Djafari-Rouhani

Non-Hermitian systems have gained a great deal of interest in various wave problems due their ability of exhibiting unprecedented phenomena such as invisibility, cloaking, enhanced sensing, or the skin effect. The latter manifests itself by the localization of all bulk modes in a specific frequency…

Applied Physics Letters, 2022, 121 (2), pp.022202. ⟨10.1063/5.0097530⟩. ⟨hal-03742127⟩

• Article dans une revue

Electro-Acoustic Properties of Scandium-Doped Aluminum Nitride (Sc_xAl_1-xN) Material and its Application to Phononic Crystal-Coupled SAW Devices

Fahima Arab, Fares Kanouni, Rafik Serhane, Yan Pennec, Zafer Özer, Khaled Bouamama

Within the framework of the Density Functional Theory, the elastic, dielectric, and piezoelectric coefficients of w-ScxAl1−xN material were investigated for scandium (Sc) concentrations x = 0 to 0.375. The electro-acoustic properties are used to investigate the frequency response of the SAW delay…

• Article dans une revue

Exceptional Points and Skin Modes in Non-Hermitian Metabeams

Runcheng Cai, Yabin Jin, Yong Li, Timon Rabczuk, Yan Pennec, Bahram Djafari-Rouhani, Xiaoying Zhuang

We present a non-Hermitian metabeam exhibiting an exceptional point (EP) induced by enforcing parity-time (PT) symmetry through applied external forces. The EP is formed by the hybridization of two flexural wave modes and its output displacement is enhanced by attaching two pillars on top of the…

Physical Review Applied, 2022, 18 (1), pp.014067. ⟨10.1103/PhysRevApplied.18.014067⟩. ⟨hal-03741975⟩

• Article dans une revue

Qualitative analysis of a 3D multiphysics model for nonlinear ultrasonics and vibration induced heating at closed defects

Kevin Truyaert, Vladislav Aleshin, Koen van den Abeele

Upon exciting a material using elastic waves, the locally induced deformation at the interfaces of internally closed defects may cause nonlinear wave mechanics and dynamics in the form of clapping and friction. As a result, both phenomena instigate spectral broadening of the excitation spectrum as…

Research in Nondestructive Evaluation, 2022, 33 (1), pp.17-32. ⟨10.1080/09349847.2022.2049408⟩. ⟨hal-03747601⟩

• Article dans une revue

On the Interference Arising From Random Spatial Fields of Interferers Utilizing Multiple Subcarriers

Ce Zheng, Malcolm Egan, Laurent Clavier, Gareth W. Peters, Jean-Marie Gorce

Efective symbol detection, channel estimation and decoding of channel codes require an accurate characterization of the noise probability distribution. In many systems, notably the internet of things, noise is largely in the form of interference, arising from a massive number of simultaneous…

EURASIP Journal on Wireless Communications and Networking, 2022, 1, pp.1-28. ⟨10.1186/s13638-022-02110-w⟩. ⟨hal-03605575⟩

• Article dans une revue

Bragg's additivity rule and core and bond model studied by real-time TDDFT electronic stopping simulations: The case of water vapor

Bin Gu, Daniel Muñoz-Santiburcio, Fabiana da Pieve, Emilio Artacho, Jorge Kohanoff, Fabrizio Cleri

The electronic stopping power (Se) of water vapor (H2O), hydrogen (H2) and oxygen (O2) gases for protons in a broad range of energies, centered in the Bragg peak, was calculated using real-time time-dependent density functional theory (rt-TDDFT) simulations with Gaussian basis sets. This was done…

Radiation Physics and Chemistry, 2022, 193, pp.109961. ⟨10.1016/j.radphyschem.2022.109961⟩. ⟨hal-03612745⟩

• Communication dans un congrès

Étude expérimentale des bifurcations primaires et secondaires de suspensions en écoulement de Taylor-Couette

M. Moazzen, T. Lacassagne, V. Thomy, A. Bahrani

25emes Rencontres du non-linéaire 2022, Mar 2022, Paris, France. ⟨hal-03607787⟩

• Article dans une revue

Plasticity of Conducting Polymer Dendrites to Bursts of Voltage Spikes in Phosphate Buffered Saline

Corentin Scholaert, Kamila Janzakova, Yannick Coffinier, Fabien Alibart, Sébastien Pecqueur

The brain capitalizes on the complexity of both its biochemistry for neurons to encode diverse pieces of information with various neurotransmitters and its morphology at multiple scales to route different pathways for neural interconnectivity. Conducting polymer dendrites can show similar features…

Neuromorphic Computing and Engineering, 2022, 2 (4), pp.044010. ⟨10.1088/2634-4386/ac9b85⟩. ⟨hal-03835336⟩

• Autre publication scientifique

Advances in Historical Studies [Editor in Chief 11/2]

Raffaele Pisano

2022. ⟨hal-04517900⟩