Polarizing an antiferromagnet by optical engineering of the crystal field

  title={Polarizing an antiferromagnet by optical engineering of the crystal field},
  author={Ankit S. Disa and Michael Fechner and Tobia F. Nova and Biaolong Liu and Michael F{\"o}rst and D. Prabhakaran and Paolo G. Radaelli and Andrea Cavalleri},
  journal={Nature Physics},
Strain engineering is widely used to manipulate the electronic and magnetic properties of complex materials. An attractive route to control magnetism with strain is provided by the piezomagnetic effect, whereby the staggered spin structure of an antiferromagnet is decompensated by breaking the crystal field symmetry, which induces a ferrimagnetic polarization. Piezomagnetism is especially attractive because unlike magnetostriction it couples strain and magnetization at linear order, and allows… 

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