O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
For collections of noninteracting nanoparticles, we study the reduced static remanent magnetization, mR, produced by the removal of a saturating magnetic field. We show that, except for special cases such as easy uniaxial anisotropy, mR depends on both the ramp-down rate of the field and the energy dissipation rate of the spin dynamics. Using the Landau-Lifshitz equation, we illustrate this result with explicit dynamical calculations of mR for cubic and for mixed cubic-uniaxial anisotropies. © 2001 Elsevier Science B.V. All rights reserved.
O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
M. Hargrove, S.W. Crowder, et al.
IEDM 1998
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