spinresolved

Spinresolved refers to the capability of an experimental technique to distinguish and measure the spin degree of freedom of quantum particles, most often electrons. It encompasses both the measurement method and the resulting data that reveal the spin polarization or spin texture of electronic states as a function of energy and momentum or position. Spinresolved approaches are widely used in condensed matter physics to study magnetic materials, superconductors, and nanostructures, as well as in the field of spintronics.

A prominent application is spin-resolved photoemission spectroscopy (spin-ARPES), which adds spin detection to angle-resolved photoemission. This technique yields momentum-resolved maps of spin polarization, revealing phenomena such as spin-momentum locking in topological insulators, Rashba-type spin splitting, and the spin structure of exchange-split bands in ferromagnets. Spin-resolved scanning probe methods, such as spin-polarized scanning tunneling microscopy, provide real-space information about spin order at surfaces and interfaces.

Spin detection relies on specialized detectors, such as Mott detectors, very-low-energy electron diffraction (VLEED) or spin-polarization analyzers, which convert spin information into measurable intensity asymmetries. Measurements typically report spin polarization P or spin polarization as a function of energy and momentum, often with a Sherman function S relating measured asymmetry to polarization via A = S P.

Challenges include low detection efficiency and the need for intense sources and careful calibration. Spinresolved measurements play a central role in characterizing magnetic materials, spin textures, and spin-dependent transport phenomena.