Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Fe2MnGe: A Hexagonal Heusler Analogue



S. Keshavarz, N. Naghibolashrafi, Michelle Elizabeth Jamer, K. Vinson, D. Mazumdar, Cindi L. Dennis, William D. Ratcliff, Julie A. Borchers, A. Gupta, P. LeClair


Fe2MnGe is a potential half-metallic full-Heusler L21 ferromagnetic compound with large spin polarization ({approximately equal}97%) useful for various spintronic applications according to our first principles calculations using density functional theory. We therefore synthesized polycrystalline samples using arc-melting and post thermal treatments. our experimental investifations revealed that Fe2MnGe crystallizes in a stable hexagonal DO19 phase, with a high saturation magnetization of approximately 5υB/f.u. at Τ = 5 K and an estimated Curie temperature of Τc~505 K. Large magnetocrystalline anisotropy and the possibility of half-metallicity presents Fe2MnGe as a candidate for spin-torque-transfer RAM and other magnetic memory applications. Although, no sample has shown the pure cubic phase during these investigations, the neutron diffraction investigations were suggestive of a low temperature cubic or tetragonal phase which can be achieved by structural transformations.
Journal of Alloys and Compounds


Created August 20, 2018, Updated November 19, 2018