Navegação Ciências Exatas e da Terra por Assunto "Superparamagnetismo"
Resultados 1-4 de 4
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Phase evolution and magnetic properties of a high-energy ball-milled hematite-alumina system
(2004) [Artigo de periódico] -
Role of spin-transfer torques on synchronization and resonance phenomena in stochastic magnetic oscillators
(2016) [Artigo de periódico]A theoretical study on how synchronization and resonance-like phenomena in superparamagnetic tunnel junctions can be driven by spin-transfer torques is presented. We examine the magnetization of a superparamagnetic free ... -
Structural and Mössbauer characterization of the ball-milled Fe/sub x/(Al/sub 2/O/sub 3)/sub 100-x/ system
(2004) [Artigo de periódico]Metal-oxide composites were synthesized by high-energy ball milling of metallic iron (α-Fe) and alumina (α-Al2O3) powders, varying the starting relative concentration and the milling time. The samples were characterized ... -
Turn on of new electronic paths in Fe-SiO2 granular thin film
(2014) [Artigo de periódico]The electrical properties of Fe-SiO2 have been studied in the low-field regime (eDV kBT), varying the injected current and the bias potential. Superparamagnetism and a resistance drop of 4400X (for a voltage variation of ...