A new alloy break the magnetization density record

Researchers from Montana State University and Lawrence Berkeley National Laboratory developed a new thin film from iron, cobalt and manganese that boasts an average atomic moment potentially 50 percent greater than the Slater-Pauling limit -a magnetization density of 3.25 Bohr magnetons per atom.

The Slater-Pauling curve describes magnetization density for alloys. Up until today, the material tthat posted the maximum average atomic moment was an iron-cobalt (FeCo) binary alloy - with a maximum average atomic moment of 2.45 Bohr magnetons per atom.

The researchers are now turning to investigate the robustness of iron-cobalt-manganese alloys, and more efficient fabrication techniques.

Posted: Feb 15,2018 by Ron Mertens