FerromagnetAntiferromagnet FMAF bilayer NiFeF2

1
Imprinting Magnetic Domains

• Ferromagnet-Antiferromagnet (FM-AF) bilayer
  (Ni-FeF2)
• Finite remanent magnetization MR state, i.e. a
  particular ferromagnetic domain configuration is
  prepared.
• The sample is zero field cooled in this state
  below the AF transition temperature, TN ? 78K.
• Domain structure of the FM is imprinted into the
  AF.
• FM magnetization loop splits into two parts
  corresponding to the domains with opposite
  magnetization directions shifted to the negative
  -HEB, and the positive HEB field.

cooling
TgtTN
TltTN
M MR
Physics Department, University of California
San Diego, Ivan K. Schuller et al.