Nanoalloys

1.Nucleation and growth of bimetallic nanoparticles.- 2.Bimetallic nanoparticles, grown under UHV on insulators, studied by scanning probe microscopy.- 3.Probing nanoalloy structure and morphology by X-ray scattering methods.- 4.Transmission electron microscopy: a multifunctional tool for the atomic-scale characterization of nanoalloys.- 5.Electronic structure of nanoalloys: a guide of useful concepts and tools.- 6.Chemical order and disorder in alloys.- 7.Segregation and phase transitions in reduced dimension: from bulk to clusters via surfaces.- 8.Computational methods for predicting the structures of nanoalloys.- 9.Magnetism of low-dimension alloys.- 10.Optical, structural and magneto-optical properties of metal clusters and nanoparticles.- 11.Surface studies of catalysis by metals: nanosize and alloying effects.

Damien Alloyeau is working at the Paris Diderot University in the Materials and Quantum Phenomena laboratory. His research focuses on both the synthesis of innovative nanomaterials and the development of electron microscopy techniques dedicated to the study of nano-objects. After his PhD thesis focused on the thermodynamical properties of CoPt nanoparticles in Paris, he obtained a post-doctoral position at the National Center for Electron Microscopy in Berkeley (LBNL, USA) where he became a specialist in aberration-corrected high-resolution TEM. He entered the CNRS as a permanent researcher in 2010. Recently, he has applied electron tomography and quantitative high-resolution electron microscopy to study the effect of the shape of CoPt nanoparticles on their order-disorder phase transition. This work, recently published in Nature Materials, is an important step forward in determining the origin of size effects in magnetic alloys nanoparticles.

Christine Mottet is a researcher of the department of Theory and Numerical Simulations of the Interdisciplinary Centre of Nanoscience in Marseille (France). After a thesis on metallic clusters and a post-doc at the University of Genova, Italy, in the group of the professor Ferrando on the growth of metallic surfaces, she enters the CNRS as researcher in the group of modelisation of Guy Tréglia in the Research Centre on Crystal Growth Mecanisms in Marseille. She works on the modelling by numerical simulations of the structure and dynamics of metallic nanoparticles. She has been member of the Council of the French Physical Society and of the National Council of the Universities. Since 2008, she has been co-director, with Christian Ricolleau, of a CNRS research network composed of 30 French laboratories working on nanoalloys.

Christian Ricolleau is the leader of the Advanced Transmission Electron Microscopy and Nanostructures group at the Material and Quantum Phenomena laboratory. He is a physicist inmaterials