Electric-Field Modulation of Interface Magnetic Anisotropy and Spin Reorientation Transition in (Co/Pt)3/PMN-PT Heterostructure

Ying Sun, You Ba, Aitian Chen, Wei He, Wenbo Wang, Xiaoli Zheng, Lvkuan Zou, Yijun Zhang, Qu Yang, Lingjia Yan, Ce Feng, Qinghua Zhang, Jianwang Cai, Weida Wu, Ming Liu, Lin Gu, Zhaohua Cheng, Ce Wen Nan, Ziqiang Qiu, Yizheng WuJia Li, Yonggang Zhao

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

We report electric-field control of magnetism of (Co/Pt)3 multilayers involving perpendicular magnetic anisotropy with different Co-layer thicknesses grown on Pb(Mg,Nb)O3-PbTiO3 (PMN-PT) FE substrates. For the first time, electric-field control of the interface magnetic anisotropy, which results in the spin reorientation transition, was demonstrated. The electric-field-induced changes of the bulk and interface magnetic anisotropies can be understood by considering the strain-induced change of magnetoelastic energy and weakening of Pt 5d-Co 3d hybridization, respectively. We also demonstrate the role of competition between the applied magnetic field and the electric field in determining the magnetization of the sample with the coexistence phase. Our results demonstrate electric-field control of magnetism by harnessing the strain-mediated coupling in multiferroic heterostructures with perpendicular magnetic anisotropy and are helpful for electric-field modulations of Dzyaloshinskii-Moriya interaction and Rashba effect at interfaces to engineer new functionalities.

Original languageEnglish (US)
Pages (from-to)10855-10864
Number of pages10
JournalACS Applied Materials and Interfaces
Volume9
Issue number12
DOIs
StatePublished - Mar 29 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Keywords

  • (Co/Pt) multilayers
  • coexistence phase
  • electric-field modulation of magnetism
  • interface magnetic anisotropy
  • perpendicular magnetic anisotropy
  • spin reorientation transition

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    Sun, Y., Ba, Y., Chen, A., He, W., Wang, W., Zheng, X., Zou, L., Zhang, Y., Yang, Q., Yan, L., Feng, C., Zhang, Q., Cai, J., Wu, W., Liu, M., Gu, L., Cheng, Z., Nan, C. W., Qiu, Z., ... Zhao, Y. (2017). Electric-Field Modulation of Interface Magnetic Anisotropy and Spin Reorientation Transition in (Co/Pt)3/PMN-PT Heterostructure. ACS Applied Materials and Interfaces, 9(12), 10855-10864. https://doi.org/10.1021/acsami.7b00284