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.









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