Prediction of a large polar Kerr angle in NiUSn

Abstract
An ab initio calculation of the magneto‐optic Kerr effect is reported for ferromagnetic NiUSn. The double polar Kerr angle 2Φ is predicted to be about 10° in the infrared and about 4° in the visible spectrum. It is concluded that substitutional alloys involving Clb phase materials and uranium atoms are important candidates for device applications.