Navegação por Autor "Geshev, Julian Penkov"
Resultados 1-20 de 120
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Análise micromagnética e desenvolvimento computacional aplicados a sistemas que apresentam acoplamento de troca
(2015) [Dissertação]O presente estudo aborda a evolução temporal de filmes finos compostos por materiais ferroantiferromagnéticos que apresentam interação de troca, visando a melhor compreensão da origem desse comportamento. Técnicas como a ... -
Analytical solutions for exchange bias and coercivity in ferromagnetic/antiferromagnetic bilayers
(2000) [Artigo de periódico]Analytical expressions have been derived for the exchange bias field, coercivity, and effective anisotropy field in ferromagnetic/antiferromagnetic bilayers in the framework of a model assuming the formation of a planar ... -
An easy approach to the synthesis and characterization of polyethylene magnetic nanocomposites
(2016) [Resumo publicado em evento] -
Anisotropia magnética perpendicular em filmes de Au/Co/FeMn
(2006) [Resumo publicado em evento] -
Anisotropia planar e perpendicular em multicamadas (Co/Pt)/sub 3//NM/IrMn, NM=Cu ou Pt
(2006) [Resumo publicado em evento] -
Antiparallel interface coupling evidenced by negative rotatable anisotropy in IrMn/NiFe bilayers
(2015) [Artigo de periódico]Negative rotatable anisotropy is estimated via ferromagnetic resonance measurements in as-made, annealed, and ion-irradiated IrMn3/Ni81Fe19 bilayers. Opposite to previous observations, inverse correlation between rotatable ... -
Atomic level mixing induced by Kr irradiation of FeCo/Cu multilayers
(2008) [Artigo de periódico]The effects of Kr ion irradiation of FexCo1−x /Cu multilayers are investigated by means of magnetic and x-ray measurements. The irradiation was performed at room temperature with 600 keV of Kr, and the fluences were ranged ... -
Augular dependence of the exchange bias obtained from magnetization and ferromagnetic resonance measurements in exchange-coupled bilayers
(2001) [Artigo de periódico]Theoretical calculations of the angular dependence of the exchange bias field in ferromagnetic/ antiferromagnetic bilayers were carried out in the framework of a model assuming the formation of a planar domain wall at the ... -
Aumento do efeito de exchange bias em IrMn/Co através de irradiação de He+ de baixa energia
(2009) [Resumo publicado em evento] -
Barreiras de óxido de alumínio produzidas por anodização
(2015) [Resumo publicado em evento] -
Bias dependence of magnetoresistance in Fe-Al/sub 2/O/sub 3/ granular thin films
(2002) [Artigo de periódico]This paper reports on the magnetotransport behavior of Fe–Al2O3 granular thin films when the injected dc current is varied. The electric resistance as a function of temperature, magnetoresistance, and the current vs applied ... -
CO2 capture using silica-immobilized dicationic ionic liquids with magnetic and non-magnetic properties
(2024) [Artigo de periódico]The need to find alternative materials to replace aqueous amine solutions for the capture of CO2 in post-combustion technologies is pressing. This study assesses the CO2 sorption capacity and CO2/N2 selectivity of three ... -
Comment on "Exchange bias dependence on interface spin alignment in a Ni/sub 80/Fe/sub 20(Ni, Fe)O thin film"
(2000) [Artigo de periódico] -
Comment on “Exchange bias in the layered cobaltite Sr1.5Pr0.5CoO4” [J. Appl. Phys. 104, 023914 (2008)]
(2009) [Artigo de periódico]Ang et al. J. Appl. Phys. 104, 023914 2008 recently reported magnetization hysteresis loops shifted along both field and magnetization axes of layered cobaltites. The authors claimed that these shifts are characteristics ... -
Comment on “Superspin glass mediated giant spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9”
(2015) [Artigo de periódico] -
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)]
(2004) [Artigo de periódico]Hu, Jin, and Ma have proposed a theoretical investigation on the influence of the antiferromagnetic layer thickness on the magnetic properties of ferromagnetic/ antiferromagnetic bilayers [J. Appl. Phys. 94, 2529 (2003)], ... -
Comportamento magnético de filmes finos de NiO/NiFe apresentando 'exchange bias'
(2001) [Resumo publicado em evento] -
Comportamento magnético de multicamadas de Cu/Ni/IrMn/Cu
(2007) [Resumo publicado em evento] -
Cone magnetization state and exchange bias in IrMn/Cu/[Co/Pt]3 multilayers
(2009) [Artigo de periódico]The effects of a Cu interlayer on the perpendicular exchange bias in IrMn/Cu/[Co/ Pt]3 multilayers were investigated by focusing on the correlation between the exchange bias and the magnetic anisotropy. The in-plane ...
