Enhanced GMI effect in Fe73.5-xMnxSi13.5B9Nb3Cu1 (x=1,3,5) nanocomposites due to Mn substitution for Fe

Manh-Huong Phan; Hua-Xin Peng; Seong-Cho Yu; Nguyen Duc Tho; Nguyen Chau

doi:10.1117/12.657566

6 April 2006 Enhanced GMI effect in Fe_73.5-xMn_xSi_13.5B₉Nb₃Cu₁ (x=1,3,5) nanocomposites due to Mn substitution for Fe

Manh-Huong Phan, Hua-Xin Peng, Seong-Cho Yu, Nguyen Duc Tho, Nguyen Chau

Proceedings Volume 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics; 61700Q (2006) https://doi.org/10.1117/12.657566
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

Influence of Mn partial substitution for Fe on the magnetic and magnetoimpedance properties of Fe_73.5-xMn_xSi_13.5B₉Nb₃Cu₁ (x = 1, 3, and 5) nanocomposite ribbons were investigated. The results indicated that the Mn addition led to an improved exchange coupling between grains and hence in the magnetic softness. Consequently, the giant magnetoimpedance (GMI) effect was significantly enhanced in these nanocomposites. In the frequency range of 0.1-10 Mhz, the GMI ratio reached the highest values of 83%, 94%, and 130% at the frequency of 2 MHz for x = 1, 3, and 5 compositions, respectively. The corresponding field sensitivity of GMI reached the highest values of 6, 7, and 16 %/Oe, respectively. These indicate that Fe_73.5-xMn_xSi_13.5B₉Nb₃Cu₁ (x = 1, 3, and 5) nanocomposites are potential candidate materials for making GMI sensors.

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Manh-Huong Phan, Hua-Xin Peng, Seong-Cho Yu, Nguyen Duc Tho, and Nguyen Chau "Enhanced GMI effect in Fe_73.5-xMn_xSi_13.5B₉Nb₃Cu₁ (x=1,3,5) nanocomposites due to Mn substitution for Fe", Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61700Q (6 April 2006); https://doi.org/10.1117/12.657566

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