Listar por autor "Carara, Marcos Andre"
Mostrando ítems 1-8 de 8
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Co/ag multilayer film : role of annealing on the magnetic properties
Schelp, Luiz Fernando; Tosin, Giancarlo; Carara, Marcos Andre; Baibich, Mario Norberto; Gomes, Affonso Augusto Guidão; Schmidt, Joao Edgar (1992) [Artículo de periódico]Co( 15 A)/Ag(60 A) multilayers produced by electron beam deposition on a 50 A chromium buffer layer over a Si( 111) wafer have been studied by magnetoresistance, saturation magnetization, coercivity, and anisotropy. Annealing ... -
Dinâmica de paredes de domínios magnéticos : um estudo através da impedanciometria
Carara, Marcos Andre (2001) [Tesis]Neste trabalho é apresentado um estudo sobre a dinâmica de paredes de domínios através de medidas de impedanciometria. É proposto um método que permite a obtenção dos seguintes parâmetros das amostras estudadas: mobilidade ... -
Magnetization dynamics as derived from magneto impedance measurements
Carara, Marcos Andre; Baibich, Mario Norberto; Sommer, Rubem Luis (2000) [Artículo de periódico]In this work, the magnetization dynamics of soft magnetic materials is studied with the aid of transverse differential permeability μ(Iac , f ,Hdc) spectra. Contributions to the magnetization processes from domain wall ... -
Magnetization process and magnetoimpedance in (110)[001]FeSi/Sub 3%
Carara, Marcos Andre; Gundel, Andre; Baibich, Mario Norberto; Sommer, Rubem Luis (1998) [Artículo de periódico]The present article investigates the relation between magnetoimpedance (MI) and the evolution of the magnetic domain structure along the magnetization curves of commercial FeSi3% sheets cut at different angles with respect ... -
Stress level in finemet materials studied by impedanciometry
Carara, Marcos Andre; Baibich, Mario Norberto; Sommer, Rubem Luis (2002) [Artículo de periódico]In this work, a study of the stress relief in Finemet ribbons, Fe73.5Cu1Nb3Si16.5B6, as a function of the annealing temperature is presented. The as melt-spun samples are amorphous and become partially crystallized after ... -
Structural and magnetic behavior of ar+-implanted co/pd multilayers : interfacial mixing
Schelp, Luiz Fernando; Carara, Marcos Andre; Viegas, Alexandre da Cas; Vasconcellos, Marcos Antonio Zen; Schmidt, Joao Edgar (1994) [Artículo de periódico]The magnetization behavior of Co/Pd multilayers has been analyzed as a function of the degree of interfacial mixing among the Co and Pd layers. Controlled atomic mixing was induced by low-dose and low-flux ion implantation ... -
Study of CoFeSiB glass-covered amorphous microwires under applied stress
Carara, Marcos Andre; Sossmeier, K.D.; Viegas, Alexandre da Cas; Geshev, Julian Penkov; Chiriac, H.; Sommer, Rubem Luis (2005) [Artículo de periódico]Magnetoimpedance-based ferromagnetic resonance (FMR) studies of annealed Co68.15Fe4.35Si12.5B15 glass-covered amorphous microwires under stress are reported. The applied stress modifies the anisotropy and the domain structure ... -
A técnica de magnetometria de torque e seus resultados
Rigue, Josué Neroti; Chrischon, Dieivase da Silva; Bohn, Felipe; Kirch, Alexsandro (2008) [Resumen publicado en evento]