Spin and electric field gradient texture studies by Mössbauer spectroscopy with polarized gamma rays

Abstract

From Mössbauer spectra of⁵⁷Fe with elliptically polarized radiation we fit the coefficients of the spin (or electric field gradient) texture function expanded in real spherical harmonics up to 1=2. We determine, and show in perspective graphs, the spin texture of the surface of a transformer metal sheet (Fe−Si), of magnetic videotapes (demagnetized and magnetized) and the electric field gradient texture of a powder of an organometallic compound. We calculate some averages that have an important physical significance.