| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pogorelov, Yg
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Topics
Publications (10/10 displayed)
- 2019Probing the morphology of epitaxial Fe/MgO discontinuous multilayers by magnetometric techniquecitations
- 2010Effect of Gd substitution on ferroelectric and magnetic properties of Bi4Ti3O12citations
- 2009Correlation Between Ionic Radius of Substituting Element and Magnetic Properties of Bi(1-x)A(x)FeO(3-x/2) (A= Ca, Sr, Pb, Ba) Multiferroics
- 2009Doping strategies for increased performance in BiFeO3citations
- 2008Effect of diamagnetic A2+ substitution on the magnetic and ferroelectric properties of the Bi1-xAxFeO3 multiferroics
- 2008Effect of diamagnetic Ca, Sr, Pb, and Ba substitution on the crystal structure and multiferroic properties of the BiFeO3 perovskitecitations
- 2008Weak ferromagnetism in diamagnetically-doped Bi(1-x)A(x)FeO(3) (A=Ca, Sr, Pb, Ba) multiferroicscitations
- 2007Synthesis and multiferroic properties of Bi(0.8)A(0.2)FeO(3) (A=Ca,Sr,Pb) ceramicscitations
- 2004Peculiar magnetic and electrical properties near structural percolation in metal-insulator granular layerscitations
- 2002Dipolar interactions and anisotropic magnetoresistance in metallic granular systemscitations
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article
Dipolar interactions and anisotropic magnetoresistance in metallic granular systems
Abstract
We revisit the theory of magnetoresistance for a system of nanoscopic magnetic granules in a metallic matrix. Using a simple model for the spin-dependent perturbation potential of the granules, we solve the Boltzmann equation for the spin-dependent components of the nonequilibrium electronic distribution function. For typical values of the geometric parameters in granular systems, we find a peculiar structure of the distribution function of conduction electrons, which is at variance with the two-current model of conduction in inhomogeneous systems. Our treatment explicitly includes the effects of dipolar correlations yielding a magnetoresistance ratio which contains, in addition to the term proportional to the square of uniform magnetization <mu>, a weak anisotropic contribution depending on the angle between electric and magnetic fields, and arising from the anisotropic character of dipolar interactions.