Abstract
We present some aspects of the realization of a new angular resolved photoemission spectrometer using a magnetic deflector. The photoelectrons are dispersed according to their energy and emission angle and focused onto a detector where the band structure appears in real time. The prototype has been realized around a toroidal magnetic field optimized by computer simulation. We discuss here the energy and the angle resolution of the whole system, related to some compromises in the technical realization as the field limit effects. The main result is that we obtain a complete display of the valence-band structure (in a plane) with a classical light source in an integration time of 10 s, which is shorter than the time needed by a classical spectrometer by several orders of magnitude.
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