GEMAC

Our laboratory

The main mission of GEMaC laboratory is to run fundamental research with perspectives of application in the fields of physics and material science for tomorrow's electronics and information processing and storage.

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Our research

The research activities of our lab are based on a common expertise in physics and material science in the field of wide gap semiconductors, functional magnetic oxides, molecular materials and nanooptics.

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Experimental facilities

The research activities in GEMaC are based on an important experimental infrastructure dedicated to material elaboration, growth, and characterisation, as well as investigation of their properties.

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Job offers

Master and PhD theses

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GEMaC: lab tour

GEMaC inauguration

SIMS analyser

Julien Barjon, diamond researcher

Reaching GEMaC

GEMaC laboratory is located on the campus of the UFR des sciences in Versailles (France), Fermat building, 45 avenue des États-Unis.

Last PhD and habilitation defences

Intégration et contrôle cohérent de centres colorés dans le nitrure de bore hexagonal

December 15, 2025

Propriétés optiques et de spin dans les cristaux d’iodure de plomb méthylammonium

January 17, 2025

Modélisation des effets d'anisotropie et de frustration élastiques en 3D, et investigation par microscopie optique des transitions de phase du premier ordre thermo- et photo-induites dans les solides moléculaires à transition de spin

December 10, 2024

» Defence agenda

Last seminars and colloquia

Jeudis de la Science - Modèles de matching stochastique généraux et leurs paradoxes, ou comment augmenter l’offre peut entrainer dans certains cas une degradation des performances globales

December 11, 2025

Introduction au Machine learning appliqué à la croissance de matériaux

December 10, 2025

Multiscale analysis of epitaxially grown 2D materials using 4D-STEM

November 13, 2025

Pré-conference meeting de la conférence internationale, International Conference on Molecular Maganetism (ICMM)

October 23, 2025 - October 24, 2025

Jeudis de la Science - Des complexes de molybdène pour la sauvegarde des abeilles: un exemple de serendipité en recherche

October 23, 2025

All the seminars and colloquia

Highlights

	The comic book ‘A Passion for Physics’, co-written by GEMaC researcher Marie-Amandine Pinault-Thaury, is now available in English! July 16, 2025 The Société Française de Physique's comic book, published in 2023 to mark its 150th anniversary, is now available in English. The book was co-written by Marie-Amandine Pinault-Thaury (CNRS researcher at GEMaC), Isabelle Mirebeau (CNRS researcher at LLB) and Aurélie Bordenave (scientific cartoonist).
	Pushing the Boundaries of Ga₂O₃ Technology for Energy and Power Electronics through Quantum Disorder June 3, 2025 A new study shows that, through phosphorus doping of β-Ga₂O₃, an exceptional p-type conductivity is obtained at room temperature, as well as a metal-insulator transition. These results open avenues for improving power electronics, essential to power grids and transport systems, and contributes to wider adoption of renewable energies.
	Efficient, bright single-photon emitters thanks to a silver mirror March 11, 2025 Researchers at GEMaC have coupled a nanometric layer of silver with a 2D material to unlock the secrets of the single-photon sources they have created in this crystal.
	Decoding the Mysteries of Spin-Crossover Materials: A Model to Explore Complex Phenomena October 23, 2024 Researchers have developed a model inspired by the Ising model to explain a wide range of fascinating behaviours observed in certain spin-crossover materials. Their work made the cover of ChemPhysChem.
	Blue diamonds to understand spin-orbit interaction April 11, 2024 Very high resolution optical absorption measurements have made it possible to understand the light spectrum of boron-doped synthetic diamond, as part of an international collaboration between GEMaC and Kyoto University (Japan).