Energy minimization and AC demagnetization in a nanomagnet array

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dc.creatorKe, X.
dc.creatorLi, J.
dc.creatorNisoli, C.
dc.creatorLammert, Paul E.
dc.creatorMcConville, W.
dc.creatorWang, R. F.
dc.creatorCrespi, V. H.
dc.creatorSchiffer, P.
dc.date2008-06-24
dc.date2008-08-06
dc.date.accessioned2026-07-07T09:54:40Z
dc.date.available2026-07-07T09:54:40Z
dc.descriptionWe study AC demagnetization in frustrated arrays of single-domain ferromagnetic islands, exhaustively resolving every (Ising-like) magnetic degree of freedom in the systems. Although the net moment of the arrays is brought near zero by a protocol with sufficiently small step size, the final magnetostatic energy of the demagnetized array continues to decrease for finer-stepped protocols and does not extrapolate to the ground state energy. The resulting complex disordered magnetic state can be described by a maximum-entropy ensemble constrained to satisfy just nearest-neighbor correlations.
dc.descriptionPublished Version
dc.identifierhttps://arxiv.org/abs/0806.3925
dc.identifierhttp://arxiv.org/abs/0806.3925
dc.identifierPhys. Rev. Lett. 101, 037205 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.037205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166403
dc.subjectMaterials Science
dc.subjectDisordered Systems and Neural Networks
dc.titleEnergy minimization and AC demagnetization in a nanomagnet array
dc.typetext

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