Origin of ferromagnetism of MnSi 1.7 nanoparticles in Si: First-principles calculations
Origin of ferromagnetism of MnSi 1.7 nanoparticles in Si: First-principles calculations
Yabuuchi, Shin ; Kageshima, Hiroyuki ; Ono, Yukinori ; Nagase, Masao ; Fujiwara, Akira ; Ohta, Eiji
2008-07-15 00:00:00
The origin of the magnetism of MnSi 1.7 nanoparticles in Si is investigated using the first-principles calculations: bulk and interface effects are considered. The bulk magnetic property is expected to be affected by stoichiometry, strain, and charge accumulation. Stoichiometry and charge accumulation induce a ferromagnetic state, and strain stabilizes the ferromagnetic state. Another factor, the MnSi 1.7 / Si interface formation, is seen as triggering ferromagnetism strongly localized at the interface. These two mechanisms are shown to be related to the experimentally determined hard and soft components, respectively.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngPhysical Review BAmerican Physical Society (APS)http://www.deepdyve.com/lp/american-physical-society-aps/origin-of-ferromagnetism-of-mnsi-1-7-nanoparticles-in-si-first-z7nqy5cK4w
Origin of ferromagnetism of MnSi 1.7 nanoparticles in Si: First-principles calculations
The origin of the magnetism of MnSi 1.7 nanoparticles in Si is investigated using the first-principles calculations: bulk and interface effects are considered. The bulk magnetic property is expected to be affected by stoichiometry, strain, and charge accumulation. Stoichiometry and charge accumulation induce a ferromagnetic state, and strain stabilizes the ferromagnetic state. Another factor, the MnSi 1.7 / Si interface formation, is seen as triggering ferromagnetism strongly localized at the interface. These two mechanisms are shown to be related to the experimentally determined hard and soft components, respectively.
Journal
Physical Review B
– American Physical Society (APS)
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