Switching times of nanoscale FePt: Finite size effects on the linear reversal mechanism

Journal Article · Mon Apr 20 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4919051· OSTI ID:22398929

Ellis, M. O. A.; Chantrell, R. W. ^[1]

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1. Department of Physics, University of York, York YO10 5DD (United Kingdom)

The linear reversal mechanism in FePt grains ranging from 2.316 nm to 5.404 nm has been simulated using atomistic spin dynamics, parametrized from ab-initio calculations. The Curie temperature and the critical temperature (T{sup *}), at which the linear reversal mechanism occurs, are observed to decrease with system size whilst the temperature window T{sup *}

• OSTI ID: 22398929
• Journal Information: Applied Physics Letters, Vol. 106, Issue 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BLOCH EQUATIONS
CRITICAL TEMPERATURE
CURIE POINT
GRAIN SIZE
INTERMETALLIC COMPOUNDS
IRON
NANOSTRUCTURES
PLATINUM
SPIN