Vortex manipulation in a superconducting matrix with view on applications

Abstract

We show how a single flux quantum can be effectively manipulated in a superconducting film with a matrix of blind holes. Such a sample can serve as a basic memory element, where the position of the vortex in a [k x l] matrix of pinning sites defines the desired combination of n bits of information (2^n=k*l). Vortex placement is achieved by strategically applied current and the resulting position is read-out via generated voltage between metallic contacts on the sample. Such a device can also act as a controllable source of a nanoengineered local magnetic field for e.g. spintronics applications.

References in corpus (5)

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• Symmetry-induced giant vortex state in a superconducting film with a Penrose array of magnetic pinning centers
• Local current injection into mesoscopic superconductors for the manipulation of quantum states
• Symmetric and non-symmetric vortex-antivortex molecules in fourfold superconducting geometry
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Cited by in corpus (7)

• Nanoscale ferroelectric manipulation of magnetic flux quanta
• Electronic properties of emergent topological defects in chiral $p$-wave superconductivity
• Manipulating multi-vortex states in superconducting structures
• Probing confined vortices with a superconducting nanobridge
• Branching of the vortex nucleation period in superconductor Nb microtubes due to inhomogeneous transport current
• The importance of thermal gradients on the vortex dynamics and magnetic behavior of mesoscopic superconducting samples
• Gradient Flow in the Ginzburg-Landau Model of Superconductivity