X-ray Diffraction facility

The IMPMC's X-ray diffraction platform provides the equipment for :

  1. the determination of structures on single crystals and studies on powders (phase transitions for example) in specific conditions of temperature (80 - 500 K on single crystals, 80 - 1400 K on powders) or pressure (0 - 50 GPa);
  2. the study of poorly crystallised compounds or nanomaterials by analysis of the pair distribution function (PDF) on microquantities and from 100 to 500 K ;
  3. microdiffraction or micro-fluorescence X-ray studies (X-ray beam from 100 to 30 µm FWHM)
  4. powder beam diffraction studies on micro-quantities (< 1 mm3) under ambient conditions, or under controlled temperature and pressure conditions, with a maximum resolution of 0.08° FWHM in 2 theta.

Main technical features

• 2 X-ray Powder diffractometers X’Pert Pro

  • Co, Cu, Mo anode
  • Bragg Brentano or transmission (capillaries)
  • 15 position automatic sample changer
  • Measurements under controlled conditions
    • Anoxic
    • High temperature (—> 1400 K)
    • Low temperature (80  —> 450 K)

• X-ray powder diffractometer Panalytical Empyrean

  • Co, Cu, Mo, Ag anode
  • Bragg Brentano or transmission (capillaries)
  • WAXS (Q —> 22 -Å–1)
  • 30 position automatic sample changer
  • Measurements under controlled conditions
    • Anoxic
    • High temperature (—> 1400 K)
    • Basse température (80  —> 450 K

• Diffractomètre 4-cercles Rigaku Xcalibur

  • Anode Mo
  • Monocristal / géométrie kappa
  • WAXS (Q —> 16 -Å–1)
  • Condiitions hautes pressions (CED)
  • Basse température (80 K)

• Diffractomètre à anode tournante Mo

  • Micro-faisceau (200 —> 35 µm)
  • Fluorescence
  • Monocristal / poudre
  • Condiitions hautes pressions (CED)