“…2,8 Interest in B2-FeSi increased somewhat recently, however, with the confirmation of antiferromagnetic spin ordering, with potential applications in high-density magnetic data storage and spintronics. 9 While an uncommon phase, a review of the literature does yield several theoretical [10][11][12] and experimental [13][14][15][16] works. These previous studies have reported macroscopic high pressure transitions to the B2 phase at >24 GPa, 14 which is of relevance to the study of geological processes in the Earth's mantle; or thin films and multilayers stabilized epitaxially on carefully prepared surfaces.…”