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Tang MH, Zhang Z, Tian SY, et al. Interfacial exchange coupling and magnetization reversal in perpendicular [Co/Ni]N/TbCo composite structures. Sci Rep. 2015;5:10863doi: 10.1038/srep10863.
Tang, M. H., Zhang, Z., Tian, S. Y., Wang, J., Ma, B., & Jin, Q. Y. (2015). Interfacial exchange coupling and magnetization reversal in perpendicular [Co/Ni]N/TbCo composite structures. Scientific reports, 510863. https://doi.org/10.1038/srep10863
Tang, M H, et al. "Interfacial exchange coupling and magnetization reversal in perpendicular [Co/Ni]N/TbCo composite structures." Scientific reports vol. 5 (2015): 10863. doi: https://doi.org/10.1038/srep10863
Tang MH, Zhang Z, Tian SY, Wang J, Ma B, Jin QY. Interfacial exchange coupling and magnetization reversal in perpendicular [Co/Ni]N/TbCo composite structures. Sci Rep. 2015 Jun 15;5:10863. doi: 10.1038/srep10863. PMID: 26074295; PMCID: PMC4466588.
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Sci Rep. 2015 Jun 15;5:10863. doi: 10.1038/srep10863.

Interfacial exchange coupling and magnetization reversal in perpendicular [Co/Ni]N/TbCo composite structures.

Scientific reports

M H Tang, Zongzhi Zhang, S Y Tian, J Wang, B Ma, Q Y Jin

Affiliations

  1. Shanghai Engineering Research Center of Ultra-precision Optical Manufacturing, and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China.
  2. Department of Physics, Ningbo University, Ningbo 315211, China.

PMID: 26074295 PMCID: PMC4466588 DOI: 10.1038/srep10863

Abstract

Interfacial exchange coupling and magnetization reversal characteristics in the perpendicular heterostructures consisting of an amorphous ferrimagnetic (FI) TbxCo(100-x) alloy layer exchange-coupled with a ferromagnetic (FM) [Co/Ni]N multilayer have been investigated. As compared with pure TbxCo(100-x) alloy, the magnetization compensation composition of the heterostructures shift to a higher Tb content, implying Co/Ni also serves to compensate the Tb moment in TbCo layer. The net magnetization switching field Hc⊥ and interlayer interfacial coupling field Hex, are not only sensitive to the magnetization and thickness of the switched TbxCo(100-x) or [Co/Ni]N layer, but also to the perpendicular magnetic anisotropy strength of the pinning layer. By tuning the layer structure we achieve simultaneously both large Hc⊥ = 1.31 T and Hex = 2.19 T. These results, in addition to the fundamental interest, are important to understanding of the interfacial coupling interaction in the FM/FI heterostructures, which could offer the guiding of potential applications in heat-assisted magnetic recording or all-optical switching recording technique.

References

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