Spin holography

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Abstract
The difference in ‘‘spin up’’ and ‘‘spin down’’ angular intensities of photoelectrons emitted from inner core levels of atoms in a magnetic crystal gives a spin hologram. The reconstructed holographic image peaks at the positions of neighboring magnetic atoms with peaks proportional to the component of their spins in the direction that the detected electrons are spin analyzed. Measuring the spin difference in three orthogonal directions determines a vector hologram which gives an image of the atomic spin vectors.