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http://hdl.handle.net/2445/10550
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 http://dx.doi.org/10.1103/PhysRevB.72.054111 |
It is part of: | Physical Review B, 2005, vol. 72, p. 054111-054118 |
URI: | http://hdl.handle.net/2445/10550 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.72.054111 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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527540.pdf | 181.82 kB | Adobe PDF | View/Open |
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