Spin Resolved 2 Dimensional Momentum Microscopy : Principle, Application, Challenges and Prospect

Abstract

In order to study electronic structures of solids including the spin information, the spin resolved 2 dimensional (2D) momentum microscopy (MM) has been developed very recently and now applicable to various materials. The principle of the 2D-MM is briefly explained and then the 2D mirror type spin-filter is explained. Very high detection efficiency of the SP-2D-MM facilitates the detection of the spin polarization P(E_B(k_x,k_y)) with the spatial resolution down to tens nm with high momentum and energy resolutions. Present status as well as the future prospect are briefly discussed.