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X-WR-CALDESC:Events for IMN
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TZID:Europe/Paris
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260609T140000
DTEND;TZID=Europe/Paris:20260611T140000
DTSTAMP:20260710T070302
CREATED:20260413T124103Z
LAST-MODIFIED:20260413T124103Z
UID:5763-1781013600-1781186400@www.cnrs-imn.fr
SUMMARY:JEELS Congress
DESCRIPTION:
URL:https://www.cnrs-imn.fr/en/event/jeels-congress/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie Building
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260611T133000
DTEND;TZID=Europe/Paris:20260611T150000
DTSTAMP:20260710T070302
CREATED:20260520T161228Z
LAST-MODIFIED:20260604T140037Z
UID:6182-1781184600-1781190000@www.cnrs-imn.fr
SUMMARY:Jeudis de la Chimie du Solide seminar - Céline Barreteau (ICMPE Thiais)
DESCRIPTION:Screening new thermoelectric intermetallic compounds using high-throughput computation and machine learning \n \nCéline Barreteau \nICMPE\, CNRS-UMR 7182\, 2-4 rue Henri Dunant\, 94320\, Thiais\, France \nVisio: https: //univ-nantes-fr.zoom.us/j/81276982367?pwd=w8FPFhgihJzxtek318gsSz5bnrbIYa.1 \nIn the current economic and ecological context\, the development of alternative energy production is a major challenge. With this in mind\, thermoelectric materials\, which convert heat flow into a temperature gradient (and vice versa)\, offer numerous advantages: no moving parts\, high reliability\, …. However\, they are still confined to niche applications due to their high production costs and low yields. New high-performance materials are therefore needed to increase the use of this technology.    \nTo facilitate and accelerate the search for new candidates\, a dual approach\, combining first-principles calculations and experiments\, is of interest. For a wide range of compositions\, our method combines high-throughput calculations to identify stable\, non-metallic compounds\, with experimental studies of the most promising screened materials.  \nInitially\, we focused on ternary T-M-X intermetallic compounds\, with T a transition metal\, rare earth or alkaline earth metal\, M an element from the first line of transition metals and X\, a sp element [1\,2]. Thus\, for dozens of prototypes\, all possible T-M-X combinations were investigated by DFT calculations. Following this theoretical screening\, experimental investigations were carried out to confirm the theoretical results\, particularly with regard to stability and thermoelectric properties [3].   \nNow\, in our quest for more promising new materials\, we are continuing to improve our screening method to increase the complexity and type of compounds\, while reducing the number and duration of calculations. To this end\, Machine Learning techniques have been applied to certain intermetallic prototypes\, such as Heuslers\, to optimize our screening [4].  \n  \n______________________ \n[1] Barreteau\, C. et al.\, Optimization of criteria for an efficient screening of new thermoelectric compounds: the TiNiSi structure-type as a case-study\, ACS Combinatorial Sciences\, 22\, 813-820\, (2020)\, https://doi.org/10.1021/acscombsci.0c00133 \n[2] Barreteau\, C. et al\, Looking for new thermoelectric materials among TMX intermetallics using high-throughput calculations\, Computational Material Science\, 156\, 96-103 (2019)\, http://doi.org/10.1016/j.commatsci.2018.09.030 \n[3] Moll\, A. et al\, SrCuP and SrCuSb Zintl phases as potential thermoelectric materials\, J. All. Comp. 924\, 169123 (2023) https://doi.org/10.1016/j.jallcom.2023.169123 \n[4] Xie\, R. et al\, Screening new quaternary semiconductor Heusler compounds by machine-learning methods\, Chem. Mater. 35\, 7615-7627 (2023) https://doi.org/10.1021/acs.chemmater.3c01323   \n  \n 
URL:https://www.cnrs-imn.fr/en/event/jeudis-de-la-chimie-du-solide-seminar-celine-barreteau-icmpe-thiais/
LOCATION:Videoconferencing
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/04/Joao_Rocha.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260624T090000
DTEND;TZID=Europe/Paris:20260624T120000
DTSTAMP:20260710T070302
CREATED:20260622T130515Z
LAST-MODIFIED:20260622T130626Z
UID:6463-1782291600-1782302400@www.cnrs-imn.fr
SUMMARY:PMN and PCM Teams Seminar
DESCRIPTION:The PCM and PMN teams are organizing a joint seminar where M1 and M2 interns will present the work they completed during their internships at the IMN. \nWednesday\, June 24\, 2026\, 9:00 a.m.\, IMN Lombarderie lecture hall. \n  \n 
URL:https://www.cnrs-imn.fr/en/event/pmn-and-pcm-teams-seminar/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie Building
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260703
DTEND;VALUE=DATE:20260704
DTSTAMP:20260710T070302
CREATED:20260624T101733Z
LAST-MODIFIED:20260624T101733Z
UID:6492-1783036800-1783123199@www.cnrs-imn.fr
SUMMARY:Thesis Defense by Bastien Anezo
DESCRIPTION:Bastien Anezo (PMN team) will defend his doctoral dissertation titled: “Simulation and Development of Azafullerene Qubits on Diamond Substrates.” \n  \n  \n 
URL:https://www.cnrs-imn.fr/en/event/thesis-defense-by-bastien-anezo/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie Building
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260703T100000
DTEND;TZID=Europe/Paris:20260703T130000
DTSTAMP:20260710T070302
CREATED:20260629T130420Z
LAST-MODIFIED:20260630T144249Z
UID:6557-1783072800-1783083600@www.cnrs-imn.fr
SUMMARY:HDR Defense by Emmanuel BERTRAND (ID2M)
DESCRIPTION:Studies of the relationships between process\, microstructure\, and mechanical properties of metals.\nThe Role of Deformation Mechanisms and Wire-Arc Additive Manufacturing. \nAbstract: Among the broad family of metal alloys\, some are subject to specific deformation mechanisms: stress-induced martensitic transformation\, reorientation twinning\, plastic twinning\, etc. These mechanisms give rise to very specific mechanical behaviors: shape memory effect\, superelasticity\, and TRIP- and/or TWIP-effect alloys. \nTo gain a better understanding of these often concurrent mechanisms\, my approach involved studying the sequences of deformation mechanisms in β-metastable titanium alloys. I then turned my attention to the relationships between an alloy’s chemical composition and its deformation mechanisms before expanding my research to other martensitic-transforming alloys.  \nAnother part of my work involves developing solutions to problems caused by the behavior of metal alloys in additive manufacturing. Depending on the metals in question\, the issues vary: a decrease in mechanical properties\, anisotropy resulting from solidification behavior\, heat accumulation\, and so on.  \nOriginal solutions are proposed at the intersection of materials science and process engineering. This approach enables a detailed understanding of the relationships between process\, microstructure\, and metal properties\, and helps overcome scientific and technological barriers.  \nKeywords: titanium alloys; wire arc additive manufacturing; metallurgy; microstructure \n\nStudies of the relationships between process\, microstructure\, and mechanical properties of metals.\nThe Role of Deformation Mechanisms and Wire Arc Additive Manufacturing \nAbstract: Among the large family of metal alloys\, some are subject to specific deformation mechanisms: stress-induced martensitic transformation\, reorientation twinning\, plastic twinning… These mechanisms give rise to very specific mechanical behaviors: shape memory effect\, superelasticity\, and TRIP and/or TWIP alloys.  \nTo gain a better understanding of these often concurrent mechanisms\, my approach involved studying the sequence of deformation mechanisms in metastable β-titanium alloys. I then focused on the relationships between an alloy’s chemical composition and its deformation mechanisms before expanding my analysis to other alloys undergoing martensitic transformation.  \nAnother part of my work involves developing solutions to problems caused by the behavior of metal alloys in additive manufacturing. Depending on the metals in question\, the issues vary: reduced mechanical properties\, anisotropy resulting from solidification behavior\, heat accumulation\, etc.  \nOriginal solutions are proposed by operating at the interface between materials science and process engineering. This approach enables a detailed understanding of the relationships between process\, microstructure\, and the properties of metals\, and helps overcome scientific and technological barriers.  \nKeywords: titanium alloys; wire arc additive manufacturing; metallurgy; microstructure
URL:https://www.cnrs-imn.fr/en/event/hdr-defense-by-emmanuel-bertrand-id2m/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/02/bertrand_emmanuel.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260703T133000
DTEND;TZID=Europe/Paris:20260703T163000
DTSTAMP:20260710T070302
CREATED:20260626T150629Z
LAST-MODIFIED:20260630T144457Z
UID:6534-1783085400-1783096200@www.cnrs-imn.fr
SUMMARY:Thesis Defense by Bastien ANEZO (PMN)
DESCRIPTION:Simulation and Development of Azafullerene Qubits on Diamond Substrates\nAbstract: Azafullerene (C59N) is a spin-active\, radical species belonging to the fullerene family. The delocalized spin ½ on the cage is a two-level system that can be manipulated as a qubit. The stability of C59N is enhanced by using a protective molecule\, [10]CPP; through supramolecular noncovalent interactions\, these two molecules form the C59N⊂[10]CPP complex. This structure possesses the same spin characteristics as azafullerene\, while remaining stable at room temperature for years. This is why C59N⊂[10]CPP shows promise in the fields of molecular electronics\, quantum information processing (QIP)\, and nanomagnets. In particular\, we are studying the implementation of a molecular spin measurement system using fluorescence from colored defects in diamond.\nIn this thesis\, first-principles calculations using density functional theory (DFT) reveal the electronic stability (charge and spin) of C59N and the NV center in diamond. NV-center fluorescence microscopy provides information on the characteristics of C59N and reveals charge instability dependent on the surface chemistry of diamond. We study surfaces such as Au(111)\, Ag(111)\, FeO(001)\, and graphene\, onto which [10]CPP and then C59N are deposited to create a monolayer of C59N⊂[10]CPP. The deposits are characterized by STM\, XPS\, and NEXAFS\, revealing complex and variable structures in which the structure of C59N⊂[10]CPP depends on the deposition and annealing conditions. The supramolecular complex retains its spin activity depending on the surface used.          \nKeywords: ab initio\, density functional theory\, supramolecular complex\, color defect\, NV center\, magnetic resonance \n\nSimulation and Development of Azafullerene Qubits on Diamond Substrates\nAbstract: Azafullerene (C59N) is a spin-active molecule—a radical species—from the fullerene family. The delocalized spin of ½ on the cage constitutes a two-level system that can be manipulated as a qubit. The stability of C59N is enhanced by using a protective molecule\, [10]CPP; through non-covalent supramolecular interactions\, these two molecules form the C59N⊂[10]CPP complex. This structure retains the same spin characteristics as azafullerene\, while remaining stable at room temperature for years. This is why C59N⊂[10]CPP shows promise in the fields of molecular electronics\, quantum information processes (QIP)\, and nanomagnets. In particular\, we are studying the implementation of a molecular spin measurement system using fluorescence from color centers in diamond.\nIn this thesis\, first-principles calculations using density functional theory (DFT) reveal the electronic stability (charge and spin) of C59N and the NV center in diamond. Fluorescence microscopy of the NV center provides information on the characteristics of C59N and reveals charge instability depending on the surface chemistry of diamond. We study surfaces such as Au(111)\, Ag(111)\, FeO(001)\, and graphene\, onto which [10]CPP and then C59N are deposited to form a monolayer of C59N⊂[10]CPP. The deposits are characterized by STM\, XPS\, and NEXAFS; they reveal complex and variable phases in which the structure of C59N⊂[10]CPP depends on the deposition and annealing conditions. The supramolecular complex retains its spin activity depending on the surface used.          \nKeywords: ab initio\, density functional theory\, supramolecular complex\, color center\, NV center\, magnetic resonance
URL:https://www.cnrs-imn.fr/en/event/thesis-defense-by-bastien-anezo-pmn/
LOCATION:Amphi IMN Lombarderie
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/02/anezo_bastien.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260706
DTEND;VALUE=DATE:20260711
DTSTAMP:20260710T070302
CREATED:20260707T153958Z
LAST-MODIFIED:20260707T154119Z
UID:6592-1783296000-1783727999@www.cnrs-imn.fr
SUMMARY:TheMoSiA 2026
DESCRIPTION:We are pleased to announce that the 19th edition of the TheMoSiA conference (formerly RCTF) will take place in Nantes\, France\, from July 6 to 10\, 2026. \nThe research areas will cover a broad spectrum of theory\, modeling\, and simulationat the atomic level\, ranging from advanced methodological innovations to practical applications\, while pushing the boundaries of the latest techniques in theoretical and computational chemistry\, materials science\, and biology. \nThe program will include 8 keynote lectures\, 13 full-length oral presentations\, 29 short oral presentations\, 12 flash presentations\, 3 sponsor sessions\, and 2 poster sessions\, so that all participants can present their research in English. Various prizes and sponsors will be featured\, and a traditional social afternoon will be organized\, all set in the eco-friendly environment of Île de Nantes (Halle 6).  \nMore information:  https://themosia2026.sciencesconf.org/
URL:https://www.cnrs-imn.fr/en/event/themosia-2026/
LOCATION:Hall 6\, Nantes\, 42 Rue la Tour d'Auvergne\, Nantes\, France
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260722T140000
DTEND;TZID=Europe/Paris:20260722T153000
DTSTAMP:20260710T070302
CREATED:20260520T163136Z
LAST-MODIFIED:20260520T163317Z
UID:6199-1784728800-1784734200@www.cnrs-imn.fr
SUMMARY:Romain Berthelot Seminar
DESCRIPTION:Solid-state design of crystalline alkali-mixed layered compounds \n \nRomain BERTHELOT \nCharles Gerhardt Institute of Montpellier\, CNRS\, UM\, ENSCM\, France \nSolid-state chemists have long explored alkali transition metal layered compounds as a playground for discovering new compositions and tuning crystal structures and physical or electrochemical properties. In these materials\, cation substitution within the transition metal layers is generally facilitated by the similar ionic radii of many elements in octahedral coordination. By contrast\, modifying the interlayer space is far more constrained\, as differences in size and site symmetry hinder the incorporation of multiple alkali elements.   \nHere\, we show that these limitations can be overcome through carefully designed synthesis strategies. A range of layered oxides and sulfides is explored\, yielding new mixed-alkali compositions with two distinct cation distributions: either a disordered arrangement within a single interlayer or an ordered stacking of chemically distinct alkali layers.  \nResolving these complex structures remains a central challenge\, particularly with regard to locating alkali ions and accounting for stacking defects. To address this\, we combine complementary techniques: X-ray and neutron powder diffraction to probe long-range order\, alongside high-resolution transmission electron microscopy and solid-state NMR to access local structural environments. Density functional theory calculations further rationalize the stability of the observed arrangements.   \nTogether\, these results uncover new structural motifs in layered materials and provide guidelines for the targeted design of mixed-alkali transition metal layered compounds. \n \nContact: Romain Wernert/Thierry Brousse (ST2E)
URL:https://www.cnrs-imn.fr/en/event/mathieu-g-seminar-silly-3/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie Building
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/05/Romain_Berthelot.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260901
DTEND;VALUE=DATE:20260904
DTSTAMP:20260710T070302
CREATED:20260615T084503Z
LAST-MODIFIED:20260615T101306Z
UID:6396-1788220800-1788479999@www.cnrs-imn.fr
SUMMARY:15th France-Japan Symposium on Lithium Batteries and Next Generations
DESCRIPTION:The purpose of the 15th France-Japan Symposium on Lithium Batteries and Next Generations is to provide a forum for French and Japanese researchers to present and discuss recent developments related to next-generation batteries. \nThis seminar focuses on advanced lithium-ion batteries\, all-solid-state batteries\, air batteries\, sodium-ion batteries\, multivalent cation batteries\, supercapacitors\, redox flow batteries\, high-power systems\, and new electrochemical energy storage devices. Developments in positive and negative electrodes\, electrolytes\, and in situ/operando techniques will be discussed.  \nFor more information: https://fr-jp-li-batt15.sciencesconf.org/?lang=fr
URL:https://www.cnrs-imn.fr/en/event/next-french-japanese-meeting/
LOCATION:Lecture Hall 1\, IRESTE Chantrerie Building
END:VEVENT
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