Navegação Ciências Exatas e da Terra por Assunto "Cobalto"
Resultados 1-12 de 12
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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 ... -
Effect of bead overlapping on the microstructure and mechanical properties of CoCrWC alloy coatings
(2018) [Artigo de periódico]In order to protect industrial components, cobalt base alloys are applied as hardfacing material through welding techniques. A large number of papers have shown that controlling the chemical composition is a key point ... -
Effect of interface intermixing on giant magnetoresistance in NiFe/Cu and Co/NiFe/Co/Cu multilayers
(2003) [Artigo de periódico]This article reports on the important influence of the spontaneously built-in paramagnetic interfacial layers on the magnetic and magnetoresistive properties of NiFe/Cu and Co/NiFe/Co/Cu multilayers grown by magnetron ... -
Engineering double-shifted hysteresis loops in Co/IrMn/Cu/Co films
(2009) [Artigo de periódico]Co 3 nm /IrMn 15 nm /Cu dCu /Co 7 nm films were subjected to magnetic annealing where its temperature and duration as well as the direction and amplitude of the applied field were varied. We demonstrate that the exchange-bias ... -
Enhanced interface perpendicular magnetic anisotropy in electrodeposited Co/Au(111) layers
(2001) [Artigo de periódico]This work investigates the structure and interface perpendicular magnetic anisotropy (PMA) of electrodeposited Cu/Co/Au(111) sandwiches with variable Co thickness [2–20 monolayers (ML’s)]. In optimum deposition conditions, ... -
In situ magnetization measurements of Cu/Co multilayers during the process of electrodeposition
(2001) [Artigo de periódico]The electrocrystallization of Cu–Co multilayers has been investigated by means of in situ magnetization measurements, during the electrodeposition, using an electrochemical alternating gradient magnetometer. The hysteresis ... -
Ion irradiation effects on the exchange bias in IrMn/Co films
(2011) [Artigo de periódico]The present work reports on the influence of ion irradiation in exchange-coupled bilayers. Magnetron-sputtered IrMn4 /Co films were irradiated with 40 keV He+ ions and the dependence of their magnetic properties was studied ... -
Magnetism in dilute magnetic oxide thin films based on SnO/sub 2/
(2006) [Artigo de periódico]Thin films of SnO2 prepared by pulsed-laser deposition on R-cut sapphire substrates exhibit ferromagnetic properties at room temperature when they are doped with Cr, Mn, Fe, Co, or Ni, but not with other 3d cations. ... -
Magnetometria in-situ para caracterização de materiais eletrodepositados
(2019) [Artigo de periódico]We have recently made studies of electrodeposits of Co onto graphene attached to different substrates, successfully performed via in-situ magnetization measurements. The magnetic analysis of deposits as a function of time ... -
Remanence plots technique extended to exchange bias systems
(2013) [Artigo de periódico]Efforts have been recently made to use remanence plots in exchange-bias studies. However, since the two remnant magnetizations of a biased loop may differ, this technique cannot be applied in its classical form. This work ... -
Tunable asymmetric magnetoimpedance effect in ferromagnetic NiFe/Cu/Co films
(2014) [Artigo de periódico]We investigate the magnetization dynamics through the magnetoimpedance effect in ferromagnetic NiFe/Cu/Co films. We observe that the magnetoimpedance response is dependent on the thickness of the non-magnetic Cu spacer ... -
X-ray-absorption spectroscopy and x-ray diffraction in discontinuous Co/sub x/Fe/sub 1-x//Ag multilayers
(2000) [Artigo de periódico]This paper reports on the structural properties of CoxFe12x /Ag discontinuous multilayers with x 50, 0.3, 0.7, and 1. The evolution of the structural properties has been investigated by x-ray diffraction and x-ray-absorption ...
