2000/05/29 by Z. Ropka, R. Michalski, Rafał Michalski +2 · 3 citations
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Radioactive element chemistry and processing #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.63.172404
published as Phys. Rev. B 63 (2001) 172404 · 11 pages in RevTex, 5 figures
arxiv created 2000/05/29 · openalex publication_date 2001/03/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Electronic and magnetic properties of FeBr2 have been surprisingly well described as originating from the Fe2+ ions and their fine electronic structure. The fine electronic structure has been evaluated by taking into account the spin-orbit coupling, crystal-field and intersite spin-dependent interactions. The large magnetic moment of iron, of 4.4\ensuremathμB, can be theoretically derived provided the spin-orbit coupling is explicitly taken into account. These calculations show that for the meaningful analysis of properties of FeBr2 the spin-orbit coupling is essentially important and that the orbital moment (0.74\ensuremathμB) is largely unquenched (by the off-cubic trigonal distortion in the presence of the spin-orbit coupling).