CONVERTER OF ORBITAL MOMENTUM INTO SPIN MOMENTUM FOR THE POLARIZATION OF PARTICLE BEAMS

The present invention relates to a method and a system for electron polarization able to generate a spin polarized output particle beam – at least partially polarized. In principle the system may produce polarized beams having high brightness and stability, allowing its adoption in practical application, such as electron microscopes. The proposed system works as efficient spin polarization filter and can be applied also to other types of particles than electrons, provided that they are provided with magnetic spin momentum (neutrons, atoms, ions, etc.). Moreover it does not require frequent cathode exchange.

Application number:  IT TO2011A001161;  US8552398 B2;  EP2605266 A2

YEAR: 2011

APPLICATIONS

  • Academic Research
  • Microscopy of magnetic materials
  • Novel effects of atomic contrast in high-resolution microscopy

INVENTORS

  • Ebrahim KARIMI
  • Enrico SANTAMATO 
  • Vincenzo GRILLO
  • Lorenzo MARRUCCI 

PATENT OWNERSHIP

  • National Research Council (Italy) (100%)

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