Atomistic simulation of heat-assisted linear reversal mode in nanodots with perpendicular anisotropy | Zendy

Y. Wang | Zendy; Terumitsu Tanaka | Zendy; K. Matsuyama | Zendy

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Atomistic simulation of heat-assisted linear reversal mode in nanodots with perpendicular anisotropy

Author(s) -

Y. Wang,

Terumitsu Tanaka,

K. Matsuyama

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4975490

Subject(s) - nanodot , condensed matter physics , curie temperature , materials science , anisotropy , field (mathematics) , magnetization , nanosecond , thermal , perpendicular , magnetic anisotropy , micromagnetics , magnetic field , ferromagnetism , physics , nanotechnology , thermodynamics , optics , laser , mathematics , geometry , quantum mechanics , pure mathematics

The spin dynamics of nanodots in the thermally induced linear reversal mode have been studied by atomistic simulation. A systematic investigation was conducted of the dependence of the properties of heat-assisted magnetization reversal on the thermal pulse width and the elevated peak temperature. An order-of-magnitude decrease in the reversal field was demonstrated for a sub-nanosecond thermal-pulse width and a peak temperature just above the Curie point. The required reversal field was found to increase with atomic uniaxial anisotropy even in the non-equilibrium field cooling process

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