Nanoscale ferroelectric manipulation of magnetic flux quanta

Abstract

Using heterostructures that combine a large-polarization ferroelectric (BiFeO3) and a high-temperature superconductor (YBa2Cu3O7-δ), we demonstrate the modulation of the superconducting condensate at the nanoscale via ferroelectric field effects. Through this mechanism, a nanoscale pattern of normal regions that mimics the ferroelectric domain structure can be created in the superconductor. This yields an energy landscape for magnetic flux quanta and, in turn, couples the local ferroelectric polarization to the local magnetic induction. We show that this form of magnetoelectric coupling, together with the possibility to reversibly design the ferroelectric domain structure, allows the electrostatic manipulation of magnetic flux quanta.

References in corpus (6)

• Very large spontaneous electric polarization in BiFeO3 single crystals at room temperature and its evolution under cycling fields
• "Water-cycle" mechanism for writing and erasing nanostructures at the LaAlO3/SrTiO3 interface
• Electric field effect modulation of transition temperature, mobile carrier density and in-plane penetration depth in NdBa2Cu3O(7-delta) thin films
• Indirect electric field doping of the CuO2 planes of the cuprate NdBa2Cu3O7 superconductor
• Vortex core deformation and stepper motor behavior in a superconducting ratchet
• Vortex manipulation in a superconducting matrix with view on applications

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