TY - JOUR
T1 - Origin of ferromagnetism of MnSi1.7 nanoparticles in Si
T2 - First-principles calculations
AU - Yabuuchi, Shin
AU - Kageshima, Hiroyuki
AU - Ono, Yukinori
AU - Nagase, Masao
AU - Fujiwara, Akira
AU - Ohta, Eiji
PY - 2008/7/11
Y1 - 2008/7/11
N2 - The origin of the magnetism of MnSi1.7 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 MnSi1.7 /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.
AB - The origin of the magnetism of MnSi1.7 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 MnSi1.7 /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.
UR - http://www.scopus.com/inward/record.url?scp=47349100529&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47349100529&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.78.045307
DO - 10.1103/PhysRevB.78.045307
M3 - Article
AN - SCOPUS:47349100529
SN - 1098-0121
VL - 78
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 4
M1 - 045307
ER -