Electric field-controlled magnetization in exchange biased IrMn/Co/PZT multilayers

نویسندگان

  • Huong Giang
  • Qingyu Xu
  • Yan Sheng
  • Xiaobo Xue
  • D T Huong Giang
  • N H Duc
  • G Agnus
  • T Maroutian
  • P Lecoeur
چکیده

Electric-field modulating exchange bias and near 180 deterministic magnetization switching at room temperature are demonstrated in simple antiferromagnetic/ferromagnetic/ferroelectric (AFM/FM/FE) exchange-coupled multiferroic multilayers of IrMn/Co/PZT. A rather large exchange bias field shift up to 1Hex/Hex = 500% was obtained. This change governs mainly the electric-field strength rather than the applied current. It is explained as being realized through the competition between the electric-field induced uniaxial and unidirectional anisotropies. These results show good prospects for low-power spintronic devices.

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تاریخ انتشار 2013