Giant electric-field-induced strain associated with defect dipole in Fe-doped Barium Titanate single crystal activated by electric field

Key Points

• This research investigates the electric-field-induced strain in Fe-doped Barium Titanate single crystals activated by an AC electric field.
• Utilized aged 1 mol% Fe-doped BaTiO3 single crystals
• Activated the crystals using an alternating current electric field
• Measured the strain response under applied electric fields
• Achieved remarkable electric-field-induced strain close to 1%
• Identified the mechanism involving defect dipoles associated with the doping