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https://repositorio.ufrn.br/handle/123456789/45028| Title: | Improving the sensitivity of asymmetric magnetoimpedance in exchange biased NiFe/IrMn multilayers |
| Authors: | Silva, Ricardo Barreto da Silva, Edimilson Felix da Mori, Thiago José de Almeida Della Pace, Rafael Domingues Pinto, Roberta Dutra de Oliveira Corrêa, Marcio Assolin Bohn, Felipe Sommer, Rubem Luis Sommer |
| Keywords: | Magnetoimpedância assimétrica de NiFe/IrMn;Magnetoimpedância com polarização;Asymmetric NiFe/IrMn magnetoimpedance;Magnetoimpedance with polarization |
| Issue Date: | 23-Jun-2015 |
| Publisher: | Elsevier |
| Citation: | SILVA, Ricardo Barreto da; SILVA,Edimilson Felix da; MORI, Thiago José de Almeida; DELLA PACE, Rafael Domingues; DUTRA, Roberta Dutra de Oliveira; CORRÊA, Marcio Assolin; BOHN, Felipe; SOMMER, Rubem Luis Sommer. Improving the sensitivity of asymmetric magnetoimpedance in exchange biased NiFe/IrMn multilayers. Journal Of Magnetism And Magnetic Materials, [S.l.], v. 394, p. 87-91, nov. 2015. Elsevier BV. Disponível em: https://www.sciencedirect.com/science/article/pii/S0304885315302547?via%3Dihub. Acesso em: 24 mai. 2020. DOI: http://dx.doi.org/10.1016/j.jmmm.2015.06.038. |
| Portuguese Abstract: | We investigate the asymmetric magnetoimpedance effect in exchange biased NiFe/IrMn multilayers and explore the possibility of tailoring the linear region of the curves around zero magnetic field by playing with the thickness of the ferromagnetic layers, probe current frequency, and the orientation between external magnetic field and exchange bias field direction. We quantify the sensitivity by calculating the dZ/dH|H=0 in a wide range of frequencies. The highest sensitivity is observed for the thicker multilayer, reaching 160 m/Oe ∼ Ω at ∼2.0 GHz. The results place exchange biased magnetoimpedance multilayers as attractive candidates for the development of auto-biased linear magnetic field sensors |
| Abstract: | We investigate the asymmetric magnetoimpedance effect in exchange biased NiFe/IrMn multilayers and explore the possibility of tailoring the linear region of the curves around zero magnetic field by playing with the thickness of the ferromagnetic layers, probe current frequency, and the orientation between external magnetic field and exchange bias field direction. We quantify the sensitivity by calculating the dZ/dH|H=0 in a wide range of frequencies. The highest sensitivity is observed for the thicker multilayer, reaching 160 m/Oe ∼ Ω at ∼2.0 GHz. The results place exchange biased magnetoimpedance multilayers as attractive candidates for the development of auto-biased linear magnetic field sensors |
| URI: | https://repositorio.ufrn.br/handle/123456789/45028 |
| ISSN: | 0304-8853 |
| Appears in Collections: | CCET - DFTE - Artigos publicados em periódicos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ImprovingTheSensitivityOfAsymmetricMagnetoimpedanceInExchange_2015.pdf | Artigo | 1,43 MB | Adobe PDF | View/Open |
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