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Title: Precursor nanoscale modulations in ferromagnets: Modeling and thermodynamic characterization
Author: Porta Tena, Marcel
Castán i Vidal, Maria Teresa
Planes Vila, Antoni
Saxena, A. (Avadh)
Keywords: Materials ferromagnètics
Mètodes de simulació
Transformacions martensítiques
Ferromagnetic materials
Simulation methods
Martensitic transformations
Issue Date: 2005
Publisher: The American Physical Society
Abstract: Using a Ginzburg-Landau model for the magnetic degrees of freedom with coupling to disorder, we demonstrate through simulations the existence of stripelike magnetic precursors recently observed in Co-Ni-Al alloys above the Curie temperature. We characterize these magnetic modulations by means of the temperature dependence of local magnetization distribution, magnetized volume fraction, and magnetic susceptibility. We also obtain a temperature-disorder strength phase diagram in which a magnetic tweed phase exists in a small region between the paramagnetic and dipolar phases.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2005, vol. 72, p. 054111-054118
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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