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http://dx.doi.org/10.4283/JMAG.2010.15.1.001

Electronic Structures and Noncollinear Magnetic Properties of Structurally Disordered Fe  

Park, Jin-Ho (Department of Physics, Pohang University of Science and Technology)
Min, B.I. (Department of Physics, Pohang University of Science and Technology)
Publication Information
Journal of Magnetics / v.15, no.1, 2010 , pp. 1-6 More about this Journal
Abstract
The magnetic properties of amorphous Fe were investigated by examining the electronic structures of structurally disordered Fe systems generated from crystalline bcc and fcc Fe using a Monte-Carlo simulation. As a rst principles band method, the real space spin-polarized tight-binding linearized-mun-tin-orbital recursion method was used in the local spin density approximation. Compared to the crystalline system, the electronic structures of the disordered systems were characterized by a broadened band width, smoothened local density of states, and reduced local magnetic moment. The magnetic structures depend on the short range configurations. The antiferromagnetic structure is the most stable for a bcc-based disordered system, whereas the noncollinear spin spiral structure is more stable for a fcc-based system.
Keywords
electronic structure of disordered solids; amorphous Fe; amorphous magnetic materials;
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