Method of fabricating interface between ferromagnetic metals/ 2D insulators affects magnetic tunneling junction spintronics' speed/ efficiency

https://www.eurekalert.org/news-releases/1098438

"nickel-iron alloy ferromagnets sandwiching graphene thin insulating layer... such as ... how produced affects how metal/ insulator align on atomic scale, affecting insulator’s carbon atoms interaction with metal atoms’ electrons, influencing spintronic magnetic properties at interface... ferromagnet surface different when insulator transferred to it (more nickel on surface so doesn't hybridize) compared to grown ferromagnetic crystal on insulator flake (features iron layer so hybridizes)... data storage/ processing, sensors"