Very large magnetoimpedance effect in FeCoNi ferromagnetic tubes with high order magnetic anisotropy
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- G. V. Kurlyandskaya
- Institut für Angewandte Physik, Heinrich Heine Universität Düsseldorf Universitätstraße 1, Bld.25.33.01.24, D-40225, Düsseldorf, Germany
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- H. Yakabchuk
- Institut für Angewandte Physik, Heinrich Heine Universität Düsseldorf Universitätstraße 1, Bld.25.33.01.24, D-40225, Düsseldorf, Germany
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- E. Kisker
- Institut für Angewandte Physik, Heinrich Heine Universität Düsseldorf Universitätstraße 1, Bld.25.33.01.24, D-40225, Düsseldorf, Germany
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- N. G. Bebenin
- Institute of Metal Physics UD RAS Kovalevskaya strasse 18, GSP-170, 620219 Ekaterinburg Russia
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- H. Garcı́a-Miquel
- Departamento de Ing. Electrónica, Universidad Politécnica de Valencia, Camino de Vera, s/n, 46022 Valencia, Spain
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- M. Vázquez
- Instituto de Ciencia de Materiales, CSIC, Campus de Cantoblanco 28049 Cantoblanco (Madrid) Spain
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- V. O. Vas’kovskiy
- Institute of Physics and Applied Mathematics, Ural State University, Lenin Ave. 51, 620083 Ekaterinburg, Russia
書誌事項
- 公開日
- 2001-12-15
- DOI
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- 10.1063/1.1418423
- 公開者
- AIP Publishing
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説明
<jats:p>The extraordinarily high (up to 800% magnetoimpedance ratio) and sensitive magnetoimpedance effect has been found and studied in FeCoNi magnetic tubes electroplated onto CuBe nonmagnetic wire at frequency of about 1 MHz order. Special annealing was done in order to induce magnetic anisotropy. The high harmonic response has been studied, and the harmonics show larger variations with the external magnetic field than the fundamental. This huge sensitivity of the harmonics (up to an order of the tens of thousands %/Oe) is promising in regard to the increase of the sensitivity of giant magnetoimpedance sensors. To explain the experiment results, we calculated the high frequency transverse susceptibility taking into account the magnetic anisotropy of first and second orders. The susceptibility is extremely high at the points of orientational phase transitions in the magnetic layer which gives rise to strong nonlinear effects.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 90 (12), 6280-6286, 2001-12-15
AIP Publishing