The speakers in a few words

Plenary Conferences :

Marie-Paule Besland Institut des Matériaux Jean Rouxel, Université de Nantes

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Guillaume Cassabois Université de Montpellier (Laboratoire Charles Coulomb)

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Annie Colin    ESPCI Paris 

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Shear thickening corresponds to an increase of the viscosity as a function of the shear rate. It is observed in many concentrated suspensions in nature and industry: water or oil saturated sediments, crystal-bearing magma, fresh concrete, silica suspensions, cornstarch mixtures.  By developing new experimental procedures based on quartz-tuning fork atomic force microscopy, we have measured the pairwise frictional profile between particles suspended in a solvent. We report a clear transition from a low-friction regime, where pairs of particles support a finite normal load, while interacting purely hydrodynamically, to a high-friction regime characterized by hard repulsive contact between the particles and sliding friction. Critically, we show that the normal stress needed to enter the frictional regime at nanoscale matches the critical stress at which shear thickening occurs for macroscopic suspensions. Our experiments bridge nano and macroscales and provide long needed demonstration of the role of frictional forces in discontinuous shear thickening.

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Olivier Dauchot  ESPCI Paris

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Gilles Patriarche  Centre de Nanosciences et de Nanotechnologies (C2N) à Palaiseau

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Frederic Pincet laboratoire de physique de l’ENS à Paris

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Guido Pupillo Laboratoire de physique quantique (ISIS, strasbourg)

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Marie-Ingrid Richard CEA Grenoble 

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Pierre Seneor

La spintronique a pour objectif d’apporter et d’explorer de nouvelles solutions pour l’électronique basse consommation de demain en se concentrant sur la recherche, la compréhension et l’exploitation de nouveau mécanismes physiques au-delà de ceux habituellement disponibles. Elle a récemment été mise en avant pour une nouvelle génération de mémoires ultrarapides et efficaces (MRAM...) mais aussi pour ses approches post-CMOS (logique de spin, calcul stochastique, neuromorphique et quantique…). Très récemment un domaine de recherche en plein essor à la frontière entre spintronique, matériaux 2D et systèmes moléculaires a ouvert des perspectives nouvelles, passionnantes et inattendues en termes de fonctionnalités et de performances pour les dispositifs spintroniques.

Pierre Seneor est professeur à l'Université Paris-Saclay et chercheur à l’Unité Mixte de Physique CNRS/Thales. Après avoir obtenu son doctorat de l'Ecole Polytechnique sous la direction de A. Fert, en 2000, il a ensuite effectué un post-doc au California  Institute of Technology (Caltech) avant de revenir en France à l’Unité Mixte de Physique CNRS/Thales et au département de physique de l’université Paris-Sud (maintenant Paris-Saclay) ou il est depuis 2003. Il a été membre de l‘Institut Universitaire de France. Il s’intéresse principalement aux propriétés exotiques du transport électronique et de spin en basse dimensionnalité : systèmes à électron unique, moléculaires, matériaux 2D…

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Semi plenary conferences :

Sylvain Bertaina Institut Matériaux Microélectronique et Nanoscience de Provence

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Ingrid Canero-Infante

Ingrid Cañero Infante received her PhD in Material Science - Physics in 2008 at the Universitat Autònoma de Barcelona (Spain), at the Institut de Ciència de Materials de Barcelona. After a post-doc stage at the Functional Oxides team at Unité Mixte de Physique - CNRS - Thalès at Palaiseau (France), she was hired at the Ecole Centrale Paris at Chatenay-Malabry as contractual teacher for the Physics department, with her research being developed at the Structures, Propriétés et Modélisation de Solides - SPMS - laboratory. She joined the CNRS in 2011 as Research Scientist at SPMS and moved in 2017 to Institut de Nanotechnologies de Lyon - INL - at Villeurbanne/Ecully.

Structure-property relationships are at the core of her research topics. Her research was originally devoted to magnetic oxides thin films within the spintronics landscape, evolving to multiferroic oxides - materials simultaneously presenting ferroelectric/ferroelastic and magnetic orders, in thin film form as nano-objects. Currently, she works on ferroelectric oxides in thin film form studied with multiscale/multitechnique approaches. In them, she seeks at understanding many aspects related to the ferroelectric polarisation, ranging from stabilization limits and capabilities to access and measurement, to intrinsic/extrinsic electromechanical and memory properties controlled by nanostructure/chemistry/boundaries conditions, nanoscale effects -  domains, domain walls - and their derived properties, nanostructure possibilities provided by synthesis/growth/engineering, ... Working at INL, demonstrators and applications are designed and manufactured in view to investigate these materials and their physical/chemical driving forces within the constraints imposed by real device exploitation requirements.

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Sabrina Carpy  Laboratoire de Planétologie et Géodynamique

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Luca Costa  Centre de Biologie Structurale de Montpellier

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Julien Dervaux

Julien Dervaux est physicien de la matière molle au Laboratoire Matière et Systèmes Complexes à l'Université de Paris. Au sein de l'équipe Dynamique des Systèmes Hors d'Equilibre, il s'intéresse plus particulièrement aux mouvements collectifs dans les suspensions de micro-organismes photosynthétiques tels que les algues ou les cyanobactéries. Il travaille également sur la mécanique des milieux élastiques, vivants ou synthétiques, et en particulier sur les interactions entre gouttes liquides et matériaux hautement déformables.

Après une thèse au Laboratoire de Physique Statistique de l'Ecole Normale Supérieure sur la description théorique de la croissance biologique, Julien Dervaux a effectué un premier séjour postdoctoral à l'université Rockefeller sur la morphogenèse des biofilms. Après un second postdoctorat consacré à l'étude des marées vertes, il a rejoint le CNRS comme chargé de recherche en 2015.   

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Fabrice Gerbier Laboratoire Kastler Brossel

 The research work of Fabrice Gerbier investigates the properties of quantum matter using dilute gases of ultracold atoms. Progress in atomic physics and quantum optics enabled to produce samples of such gases very close to the absolute zero temperature (in a temperature scale ranging roughly from the nano- to the microKelvin), where their properties are collective and dominated by the interplay between interactions and quantum statistics. Fabrice Gerbier carried out his PhD at Institut d'Optique in Palaiseau (now IO-GS) under the supervision of Alain Aspect and Philippe Bouyer. He investigated the thermodynamic properties of ultracold Bose gases and the emergence of phase fluctuations in a quasi-one-dimensional geometry. After defending his PhD in 2003, he joined the group of Immanuel Bloch at the university of Mainz (now LMU/MPQ in Munich) to explore various aspects of the superfluid-Mott insulator transition observed in optical lattices, periodic arrays of traps mimicking for neutral atoms the periodic ionic potential felt by electrons in solids. Since 2005, he is a permanent researcher at CNRS and has worked in the Bose-Einstein condensates group at Laboratoire Kastler Brossel. At LKB, FG is involved in two experimental projects. The first project (with Jean Dalibard) uses sodium atoms to study antiferromagnetic spinor condensates and to generate entangled states of many atoms. The second project (initiated with Jérôme Beugnon and also involving Raphaël Lopes) uses laser-dressed gases of ytterbium atoms in optical lattices and aims to emulate various types of quantum matter, e.g. to realize synthetic orbital magnetism or strongly-correlated quantum Hall systems.

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Jacky Even INSA Rennes

Jacky Even is Professor at INSA Rennes engineering school since 1999. He received a PhD in Physics from the University of Paris VI in 1992. He was assistant professor at the Physics Department of Rennes University. In 1999, he created FOTON’s (UMR 6082) simulation team at INSA, to study semiconductors from the atomistic level to optoelectronic devices, initially for optical telecommunications and later on for silicon photonics.

Understanding the physical properties of hybrid and all-inorganic metal-halide perovskites is his major theme since 2010, jointly developped with CTI/ISCR (UMR 6226) in Rennes and laboratories in US. Those materials have recently demonstrated great potential for low-cost optoelectronic technologies, including light emitting and photovoltaic devices, raising in turn many fundamental issues in Physics and Materials Science. Among those, this class of materials offers innate heterostructures and low-dimensional nanostructures with great structural and chemical versatility, i.e. a natural playground to investigate effect of dielectric and quantum confinements.

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 Walter Kob Laboratoire Charles Coulomb, Montpellier

Walter Kob received his PhD in 1989 in theoretical Physics at the University of Basel (Switzerland).  After a postdoc at the Department of Chemistry at Stanford University, he became in 1994 an assistant professor at the Department of Physics at the University of Mainz in Germany. In 2000 he accepted a full professorship at the University of Montpellier, France. There he became the head of the Laboratoire des Verres and subsequently of the Laboratoire des Colloides, Verres, et Nanomateriaux.

The topics of his research are focused on the structural and dynamical properties of disordered systems, such as glasses, polymeric systems, granular materials. For his studies he mainly uses atomistic computer simulations, but in recent years he has also been involved in several experimental studies on granular materials and colloidal systems. For this work Walter Kob has been honored by the Otto Schott Research Award, Prix Ivan Peyches of the French Academie des Sciences, Darshana and Arun Varshneya Frontiers of Glass Science Lecture, as well as a Senior Membership of the Institut Universitaire de France.

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Elsa LHotel Institut Néel, Grenoble

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Olivier Millet Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle

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Vinh Ta-Phuoc Materiaux, microéléctronique, acoustique, nanotechnologies (GREMAN), Tours

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Alaska Subedi  Centre de Physique Théorique, Palaiseau

 Alaska Subedi is a theorist who uses first principles calculations to understand how the physical properties of materials arise out of their structure and chemistry. He has contributed to the understanding of the electronic properties of the iron superconductors and rare-earth nickelates. Recently he proposed a mechanism for light-control of ferroelectrics using midinfrared laser pulses. He has been a CNRS researcher since 2017.