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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.









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






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