Strength And Magnetism of Nanocomposites Formed By 3d-Metal Nanochains Embedded In a Non-Magnetic Matrix

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Authors	ŠOB Mojmír KÁŇA Tomáš
Year of publication	2011
Type	Article in Periodical
Magazine / Source	World Journal of Engineering
MU Faculty or unit	Central European Institute of Technology
Citation
Web	http://wjoe.hebeu.edu.cn/sup.3.2010/S/S2/Sob,%20Mojmir%20%28Masaryk%20U.,%20Brno,%20Czech%20Rep.%29%201033.pdf
Field	Solid matter physics and magnetism
Keywords	electronic structure; nanocomposites; magnetism
Attached files	sob_wje_kana11.pdf
Description	We have modeled several MnPt compounds and nanocomposites, in particular the recently found MnPt7 (super)structure, and determined the antiferromagnetic ordering as its ground state. A similar antiferromagnetic ordering has been found in our model MnPt15 structure. The last result is in agreement with experiment, for this antiferromagnetic ordering has been found experimentally in the Pt8.8 % Mn alloy with manganese concentration similar to MnPt15. We studied also magnetic states of linear nanocomposites consisting of Mn or MnPt nanochains in the Pt matrix. Our results indicate the existence of a coupling of Mn spins through the surrounding Pt atoms.
Related projects:	Physical and chemical properties of advanced materials and structures Theoretical studies of grain boundaries with point defects and their aggregates CEITEC - Central European Institute of Technology