Journal of the Magnetics Society of Japan
Online ISSN : 1882-2932
Print ISSN : 1882-2924
ISSN-L : 1882-2924
Thin Films, Fine Particles, Multilayers, Superlattices
Fabrication of Ferrimagnetic Co/Gd/Pt Multilayers with Structural Inversion Symmetry Breaking
T. Nishimura, M. Haruta, D.-H. Kim, Y. Shiota, H. Iwaki, D. Kan, T. Moriyama, H. Kurata, T. Ono
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Keywords: ferrimagnets, structural inversion symmetry breaking, multilayers, magnetic properties, perpendicular magnetic anisotropy, thin film
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2020 Volume 44 Issue 1 Pages 9-14

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Abstract

  We developed ferrimagnetic [Co(0.5)/Gd(1)/Pt(1)]N (unit: nm) multilayers with structural inversion symmetry breaking and investigated the dependence of magnetic properties and magnetic domain structures on the repetition number (N = 1 – 50). The magnetization compensation temperature increases as N increases, and saturates at around 210 K for N ≥ 20. All films with various repetition number possess the out-of-plane magnetic easy axis, and multi domain structure at the remanence state was observed in the film with N = 50. These results show that the magnetic properties of the ferrimagnetic Co/Gd/Pt multilayers can be tuned by the repetition number.

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