Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Pizzagalli, Laurent"'
Autor:
Amodeo, Jonathan, Pizzagalli, Laurent
Publikováno v:
Comptes Rendus. Physique, Vol 22, Iss S3, Pp 35-66 (2021)
Nanoparticles are commonly used in various fields of applications such as electronics, catalysis or engineering where they can be subjected to a certain amount of stress leading to structural instabilities or irreversible damages. In contrast with bu
Externí odkaz:
https://doaj.org/article/b7901a1ca2364d938439f6d2f4214343
Motivated by contradicting reports in the literature, we have investigated the structural stability of tungsten nanoparticles using density functional theory calculations. The comparison of BCC, FCC, A15, disordered, and icosahedral configurations un
Externí odkaz:
http://arxiv.org/abs/2404.04161
Autor:
Pizzagalli, Laurent, Godet, Julien
It is now well established that materials are stronger when their dimensions are reduced to submicron scale. However, what happens at dimensions such as a few tens of nanometers or lower remains largely unknown, with conflicting reports on strength o
Externí odkaz:
http://arxiv.org/abs/2310.11170
Autor:
Luo, Wei, Xie, Zhuocheng, Zhang, Siyuan, Guénolé, Julien, Sun, Pei-Ling, Meingast, Arno, Alhassan, Amel, Zhou, Xuyang, Stein, Frank, Pizzagalli, Laurent, Berkels, Benjamin, Scheu, Christina, Korte-Kerzel, Sandra
Brittle topologically close-packed precipitates form in many advanced alloys. Due to their complex structures little is known about their plasticity. Here, we present a strategy to understand and tailor the deformability of these complex phases by co
Externí odkaz:
http://arxiv.org/abs/2303.05858
Publikováno v:
Phys. Rev. B 101, 054204 (2020)
Locally, the atomic structure in well annealed amorphous silicon appears similar to that of crystalline silicon. We address here the question whether a point defect, specifically a vacancy, in amorphous silicon also resembles that in the crystal. Fro
Externí odkaz:
http://arxiv.org/abs/1912.09178
Autor:
Godet, Julien, Massé, Gwénaël, Shahine, Issraa, Hatte, Quentin, Bahsoun, Hadi, Bouard, Florian, Vernisse, Loranne, Pizzagalli, Laurent, Le Granvalet, Maryline, Tessier, Pierre-Yves
Publikováno v:
In Thin Solid Films 31 December 2023 787
Autor:
Pizzagalli, Laurent
Ce document décrit les résultats de plusieurs études des dislocations dans les semiconducteurs, effectuées au cours de la période 2000-2005. Le premier chapitre se rapporte à la nucléation des dislocations à partir de défauts de surface, le
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00170884
http://tel.archives-ouvertes.fr/docs/00/17/08/84/PDF/habil.pdf
http://tel.archives-ouvertes.fr/docs/00/17/08/84/PDF/habil.pdf
Publikováno v:
In Computational Materials Science 15 April 2019 161:135-142
Publikováno v:
In Materialia March 2019 5
Publikováno v:
Physical Review Letters 103 (2009) 065505
We report an unexpected characteristic of dislocation cores in silicon. Using first-principles calculations, we show that all the stable core configurations for a non-dissociated 60$^\circ$ dislocation are sessile. The only glissile configuration, pr
Externí odkaz:
http://arxiv.org/abs/0909.3760