Publications

• Article dans une revue

Spin Seebeck effect and thermal properties of zigzag graphene nanoribbons with edge magnetism

Jing Li, Yann-Michel Niquet, Christophe Delerue

Zigzag graphene nanoribbons (GNRs), demonstrating edge magnetism, are fascinating materials for electronic and spintronic applications. In this paper, we investigate with explicit consideration of electron-phonon scattering the Seebeck effect and thermal conductivity at various carrier densities in…

Physical Review B, 2023, 107 (24), pp.245417. ⟨10.1103/PhysRevB.107.245417⟩. ⟨hal-04140310⟩

• Communication dans un congrès

Space-time Modulation in a Piezoelectric Phononic Crystal: Experimental Study in Sub-sonic and Sonic Regimes

Sarah Tessier Brothelande, Charles Croenne, Florian Allein, Jerome Vasseur, Bertrand Dubus

We experimentally study acoustic wave propagation in a spatio-temporally modulated system for different modulation speeds, up to the sonic regime when the modulation speed is similar to the wave propagation speed. The system under study is a piezoelectric phononic crystal whose electrical boundary…

17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023, Sep 2023, Crete, Greece. ⟨hal-04373483⟩

• Article dans une revue

Capillary-driven horseshoe vortex forming around a micro-pillar

K. Ozawa, H. Nakamura, K. Shimamura, G.F. Dietze, H.N. Yoshikawa, Farzam Zoueshtiagh, K. Kurose, L. Mu, I. Ueno

Hypothesis: Horseshoe vortices are known to emerge around large-scale obstacles, such as bridge pillars, due to an inertia-driven adverse pressure gradient forming on the upstream-side of the obstacle. We contend that a similar flow structure can arise in thin-film Stokes flow around micro-…

Journal of Colloid and Interface Science, 2023, 642, pp.227-234. ⟨10.1016/j.jcis.2023.03.039⟩. ⟨hal-04187943⟩

• Article dans une revue

Physical Insights of thin AlGaN Back Barrier for millimeter-wave high voltage AlN/GaN on SiC HEMTs

Ajay Shanbhag, Francois Grandpierron, Kathia Harrouche, Farid Medjdoub

In this work, physical mechanisms underlying carbon-doped buffer combined with an AlGaN back-barrier layer are investigated in state-of-the-art millimeter-wave AlN/GaN transistors. We have fabricated devices with and without the insertion of a thin AlGaN back-barrier layer with reduced carbon…

Applied Physics Letters, 2023, 123 (4), pp.142102. ⟨10.1063/5.0168918⟩. ⟨hal-04224748⟩

• Chapitre d'ouvrage

Photonic triangular pyramid

Housni Al Wahsh, Leonard Dobrzynski, Abdellatif Akjouj

Resonance, Elsevier, pp.153-182, 2023, ⟨10.1016/B978-0-44-319144-2.00015-4⟩. ⟨hal-04070654⟩

• Ouvrages

Resonance: Long-Lived Waves

Leonard Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj

Resonance: Long-Lived Waves, a new volume in the Interface Transmission Tutorial Book series, introduces long-life resonance properties for telecommunications. The book's authors review the general analysis methods of interface transmission, giving many examples and applying these methods to…

Edited by Leonard Dobrzynski. Elsevier, A volume in Interface Transmission Tutorial Book Series, 2023, ISBN 978-0-443-19144-2. ⟨10.1016/C2022-0-00871-0⟩. ⟨hal-04070657⟩

• Article dans une revue

Efficient Co/Pt THz spintronic emitter with tunable polarization

A. Buryakov, A. Gorbatova, P. Avdeev, E. Lebedeva, K. Brekhov, A. Ovchinnikov, N. Gusev, E. Karashtin, M. Sapozhnikov, E. Mishina, N. Tiercelin, V.L. Preobrazhensky

We report on the design of a spintronic emitter based on the Pt(3 nm)/Co(3 nm) structure, which enables the control over terahertz radiation polarization. Utilizing the field-induced magnetization rotation that takes place at low magnetic fields of up to 250 Oe at room temperature, we have achieved…

Applied Physics Letters, 2023, 123 (8), ⟨10.1063/5.0160497⟩. ⟨hal-04243717⟩

• Article dans une revue

Advances on Microsupercapacitors: Real Fast Miniaturized Devices toward Technological Dreams for Powering Embedded Electronics?

Khac Huy Dinh, Pascal Roussel, Christophe Lethien

Electrochemical lithium (de)intercalation in an atomic layer deposited (ALD) TiO2 anatase thin film deposited on a planar Si /Al2O3/Pt substrate is investigated by Raman spectroscopy. An initial discharge capacity of 63 µAh cm−2 µm−1 (0.5 Li+ mole−1) is reached at C/10 rate, which increases up to…

ACS Omega, 2023, 8 (10), pp.8977-8990. ⟨10.1021/acsomega.2c07549⟩. ⟨hal-04034213⟩

• Article dans une revue

Mid-wave Infrared sensitized InGaAs using Intraband Transition in Doped Colloidal II-VI Nanocrystals

Adrien Khalili, Mariarosa Cavallo, Tung Huu Dang, Corentin Dabard, Huichen Zhang, Erwan Bossavit, Claire Abadie, Yoann Prado, Xiang Zhen Xu, Sandrine Ithurria, Grégory Vincent, Christophe Coinon, Ludovic Desplanque, Emmanuel Lhuillier

Narrow bandgap nanocrystals (NCs) are now used as infrared light absorbers, making them competitors to epitaxially grown semiconductors. However, these two types of material could benefit from one another. While bulk materials are more effective in transporting carriers and give a high degree of…

The Journal of Chemical Physics, 2023, 158 (9), pp.094702. ⟨10.1063/5.0141328⟩. ⟨hal-04009888⟩

• Article dans une revue

Hermitian and non-Hermitian Weyl physics in synthetic three-dimensional piezoelectric phononic beams

Liangshu He, Yan Li, Bahram Djafari-Rouhani, Yabin Jin

Recently, the evolution of the Weyl point (WP) caused by the introduction of nonhermiticity into Weyl semimetals has aroused great research interest. We consider elastic flexural wave propagation in a phononic beam containing piezoelectric materials and introduce nonhermiticity through active…

Physical Review Research, 2023, 5 (2), pp.023020. ⟨10.1103/PhysRevResearch.5.023020⟩. ⟨hal-04089768⟩