Listar Ciencias Exactas y Naturales por tema "Permeabilidade magnética"

Mostrando ítems 1-5 de 5

    • Impedance and initial magnetic permeability of gadolinium 

      Fraga, Gilberto Luiz Ferreira; Pureur Neto, Paulo; Cardoso, Lisandro Pavie (2010) [Artículo de periódico]
      In the present work we report on measurements of the complex impedance and the magnetoimpedance of a textured sample of gadolinium metal. The preferential c -axis orientation of the Gd hexagonal structure is perpendicular ...

    • Impedance and initial magnetic permeability of the Heusler compounds Pd/sub 2/MnSn and Pd/sub 2/MnSb near the Curie temperature 

      Fraga, Gilberto Luiz Ferreira; Borba, Luciano Apellaniz; Pureur Neto, Paulo (2006) [Artículo de periódico]
      In this paper we report measurements of the complex impedance of the Heusler compounds Pd2MnSn and Pd2MnSb near the Curie temperature. From the experimental data, the complex initial magnetic permeability is obtained as a ...

    • 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 dynamics in nanostructures with weak/strong anisotropy 

      Andrade, Antonio Marcos Helgueira de; Corrêa, Marcio Assolin; Viegas, Alexandre da Cas; Bohn, Felipe; Sommer, Rubem Luis (2014) [Artículo de periódico]
      We investigate the high-frequency response of magnetization dynamics through magnetoimpedance (MI) effect in Permalloy-based multilayered thin films produced with two different non-magnetic metallic spacers: Cu and Ag. Due ...

    • 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 ...