157 citations · 1k across the 26 of their papers we have counts for
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Tuning Elastic Properties of Metallic Nanoparticles by Shape Controlling: From Atomistic to Continuous Models
Matteo Erbi, Hakim Amara, Riccardo Gatti
Understanding and mastering the mechanical properties of metallic nanoparticles is crucial for their use in a wide range of applications. In this context, we use atomic-scale (Mole…
Atomic Scale Surface Segregation in Copper-Gold Nanoparticles
Grégoire Breyton, Hakim Amara, Jaysen Nelayah +5
In this work, we combine electron microscopy measurements of the surface compositions in Cu-Au nanoparticles and atomistic simulations to investigate the effect of gold segregation…
Structural classification of boron nitride twisted bilayers and ab initio investigation of their stacking-dependent electronic structure
Sylvain Latil, Hakim Amara, Lorenzo Sponza
Since the discovery of superconductive twisted bilayer graphene which initiated the field of twistronics, moiré systems have not ceased to exhibit fascinating properties. We demons…
Colloidal Synthesis of Nanoparticles: from Bimetallic to High Entropy Alloys
Cora Moreira da Silva, Hakim Amara, Frédéric Fossard +3
At the nanometric scale, the synthesis of a random alloy (i.e. without phase segregation, whatever the composition) by chemical synthesis remains a not easy task, even for simple b…
The impact of stress on the electronic structure of phosphorus allotropes stacked on hexagonal boron nitride
Baptiste Bienvenu, Hakim Amara, François Ducastelle +1
We study the mechanical and electronic properties of heterobilayers composed of black phosphorus (BP) on hexagonal boron nitride (hBN) and of blue phosphorus (\Pblue) on hBN by mea…
Direct and indirect excitons in boron nitride polymorphs: a story of atomic configuration and electronic correlation
Lorenzo Sponza, Hakim Amara, Claudio Attaccalite +5
We compute and discuss the electronic band structure and excitonic dispersion of hexagonal boron nitride (hBN) in the single layer configuration and in three bulk polymorphs (usual…