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 five priority topics :

  • Functional oxides for energy efficiency: combinatory synthesis and nanostructuration.
  • Magnetic and optical properties of ferroic and electronic correlation materials.
  • Novel materials and components for power and RF microelectronics.
  • Piezoelectric and capacitive micronanosystems for ultrasonic transducers and energy conversion.
  • Ultrasonic methods and instrumentation for characterisation of complex media.









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