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GREMAN is a research laboratory on materials, microelectronics, acoustics and nanotechnology of the University of Tours, CNRS and INSA Centre Val de Loire created January 1st 2012 by the merging of several groups located in Tours and Blois, France. Its expertise covers the value chain from materials science up to devices (components, sensors, transducers ...) and their integration. Fields such as electrical energy efficiency, power microelectronics and the use of ultrasonic waves are particularly targeted, for applications in industry, health and nomadic apparatus.

The activities of GREMAN are focused on four priority topics :

  • Functional oxides for energy efficiency: combinatory synthesis and nanostructuration.
  • Magnetic and optical properties of ferroic and electronic correlation materials.
  • Ultrasonic instrumentation and characterisation.
  • Energy, component, systems, microelectronics.









Precipitation Carbides Disperse systems Barium titanate Acoustic waves Magnetization dynamics Mesoporous silicon Adsorption Time-dependent density functional theory Microwave frequency Silicon Electrical resistivity Transducers Collaborative framework Capacitors Atomistic molecular dynamics Mechanical properties Porous materials Materials Capacitance Thermal conductivity Annealing 3C–SiC ZnO nanowires Doping Thermoelectrics Piezoelectric Diffraction optics Thin film growth Attractiveness of education Crystal growth Modeling Composite LPCVD Aluminium Piezoelectricity Chemical synthesis Organic solar cell Strain Active filters Individual housing Resistive switching Electrochemical etching Oxides Demand side management Ultrasound Raman spectroscopy Chemical vapor deposition Nanowires High pressure Reliability Thin film deposition Atomic force microscopy Numerical modeling Ferroelectrics Dielectric properties Colossal permittivity Smart grid CCTO Piézoélectricité Elasticity Characterization Micromachining Spark plasma sintering Nanoparticles Hyperbolic law AC switch Electronic structure Crystallography Thin films Porous silicon Phase transitions Sputtering Electrical properties Zinc oxide Electrodes Epitaxy ZnO Boundary value problems Nanogenerator Condensed matter properties Layered compounds CMUT Silicon devices Domain walls Ferroelectricity Acoustics Light diffraction Etching Composites Energy harvesting Crystal structure Piezoelectric materials X-ray diffraction Raman scattering Ceramics Imaging Piezoelectric properties Multiferroics Electron microscopy






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