Enhanced magnetic properties of self-assembled FePt nanoparticles with MnO shell.
Self-assembled FePt/MnO nanoparticles with different morphology and size were synthesized with a polyol process. With the MnO coating, FePt nanoparticles exhibit a high blocking temperature and magnetic moment. The low-temperature hysteresis loop of FePt nanoparticles can be shifted through the AFM pinning of the MnO shell. The aggregation of FePt nanoparticles during the L10 phase transformation can be significantly decreased by coating with the MnO shell.
Kang
Shishou
S
Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, 35487-0209, USA. skang@mint.ua.edu
Miao
G X
GX
Shi
S
S
Jia
Z
Z
Nikles
David E
DE
Harrell
J W
JW
D007501:Iron / Q000737:chemistry*; D008280:Magnetics; D017895:Manganese Compounds / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*
D017895:Manganese Compounds; D010087:Oxides; D010984:Platinum; C027424:manganese oxide; D007501:Iron