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.









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