Hall and giant magnetoimpedance effects in the Co70Fe5Si15B10 metallic glass |
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| Institution: | 1. Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife-PE, Brazil;2. Centro Federal de Educação Tecnológica do Ceará, Fortaleza, CE, Brazil;1. Departamento de Fisicá, Universidade Estadual de Maringá, Maringá, PR, Brazil;2. Departamento de Fisicá, Universidade Estadual de Maringá, Maringá, PR, Brazil;3. Departamento de Engenharia de Materiais, Vitreous Materials Laboratory, Universidade Federal de São Carlos, São Carlos, SP, Brazil |
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| Abstract: | The transversal giant magnetoimpedance and the Hall effects of a high magnetic permeability metallic glass, Co70Fe5Si15B10, were measured as a function of the frequency (f) and amplitude of ac electrical current (Iac). The room temperature data were obtained for 0.01 ⩽ f ⩽ 100 kHz, 0.5 ⩽ Iac ⩽ 45 mA and for applied magnetic field (H) varying in the range ±10 kOe. For low frequencies, the H-dependence of the Hall voltage is similar to those measured using dc currents. However, the Hall voltage develops spectra made of two strongly f-dependent symmetrical peaks centered around ±1.6 kOe when the frequency is increased. The anomaly in the Hall voltage was identified as mainly due to a planar Hall effect. |
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