M
Marcelo Knobel
Researcher at State University of Campinas
Publications - 359
Citations - 9004
Marcelo Knobel is an academic researcher from State University of Campinas. The author has contributed to research in topics: Magnetization & Amorphous solid. The author has an hindex of 44, co-authored 354 publications receiving 8243 citations. Previous affiliations of Marcelo Knobel include Federico Santa María Technical University & Polytechnic University of Turin.
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Ag−Fe3O4 Dimer Colloidal Nanoparticles: Synthesis and Enhancement of Magnetic Properties
Gleyguestone Lopes,Jose M. Vargas,Surender K. Sharma,Fanny Béron,Kleber R. Pirota,Marcelo Knobel,C. Rettori,Roberto D. Zysler +7 more
TL;DR: A solution-phase route to prepare Ag−Fe3O4 colloidal dimer nanoparticles (NPs) with a dumbbell-like shape was described in this article, which showed enhancement of the magnetic anisotropy and large coerciv...
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Influence of Joule heating on magnetostriction and giant magnetoimpedance effect in a glass covered CoFeSiB microwire
TL;DR: In this paper, the influence of annealing parameters (time ta, current Ia, and applied stress σa) on magnetic properties of amorphous Co68.15Fe4.35Si12.5B15 glass covered microwire (13 μm) was investigated.
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Phosphate coating on the surface of carbonyl iron powder and its effect in magnetorheological suspensions
TL;DR: In this paper, the influence of the surface treatment of the magnetic particle and the kind of fumed silica on the formulation of some magnetorheological suspensions (MRS) was evaluated.
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Stress dependence of the giant magneto-impedance effect in amorphous wires
TL;DR: In this paper, the effect of different orientations of the induced magnetoelastic anisotropy has been verified, for the first time, by using wires with opposite magnetostriction constant, lambda s, signs (Fe4.9Co71.8Nb0.8Si7.4Si12.5B15, lambda S=-4*10-8).
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Soft nanocrystalline ferromagnetic alloys with improved ductility obtained through dc Joule heating of amorphous ribbons
TL;DR: In this paper, the advantages of this rapid heating technique are highlighted, and the average grain size of Joule-heated samples is significantly lower than in the furnace-annealed alloy.