Physics – Condensed Matter – Materials Science
Scientific paper
2010-02-10
Phys. Rev. B 81, 212409 (2010)
Physics
Condensed Matter
Materials Science
4 pages, 2 figures
Scientific paper
10.1103/PhysRevB.81.212409
Magnetic anisotropy phenomena in bimetallic antiferromagnets Mn$_2$Au and MnIr are studied by first-principles density functional theory calculations. We find strong and lattice-parameter dependent magnetic anisotropies of the ground state energy, chemical potential, and density of states, and attribute these anisotropies to combined effects of large moment on the Mn 3$d$ shell and large spin-orbit coupling on the 5$d$ shell of the noble metal. Large magnitudes of the proposed effects can open a route towards spintronics in compensated antiferromagnets without involving ferromagnetic elements.
Jungwirth Tomas
Khmelevskyi Sergii
Mryasov Oleg N.
Shick Alexander B.
Wunderlich Joerg
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