Exchange Bias Properties in Bulk Ni₄₅Co₅Mn₃₈Sn₁₂ Heusler Alloy

Abstract:

We report the exchange bias properties in the bulk Ni₄₅Co₅Mn₃₈Sn₁₂ quaternary Heusler alloy. The ferromagnetic (FM) –antiferromagnetic (AFM) interactions get reinforced after the Co substitution for Ni in the Ni-Mn-Sn alloy, which increase the exchange bias field (HE). A maximum shift in hysteresis loops of 306 Oe was observed in the 10 kOe field cooled sample. The origin of this large exchange bias field has been discussed. Magnetic hysteresis loop obtained in the zero field cooled (ZFC) mode shows double-shifted loop, and the reason of this phenomenon has been explained in detail.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 272-276
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.272
• Online since: February 2014
• Authors: Chao Jing, Ye Jun Yang, Dong Hua Yu, Zhe Li, Xiao Long Wang, Bao Juan Kang, Shi Xun Cao, Jin Cang Zhang, Jie Zhu, Bo Lu
• Keywords: Double-Shifted Loop, Exchange Bias, Martensitic Phase

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