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Technology

Strain Templating and Control of Topological Quantum States

Invention Reference Number

202305497

When a magnetic field is applied to a type-II superconductor, it penetrates the superconductor in a thin cylindrical line known as a vortex line. Traditional methods to manipulate these vortices are limited in precision and affect a broad area. Our innovative approach targets and manipulates these vortex lines with nano-level precision. By doing so, we can create localized regions with controlled superconductivity levels and nano-scale trapping potential. 
The decrease in superconductivity due to strain is attributed to the unique properties of layered materials like Fe-based superconductors. Using this trapping force, we have successfully displaced vortices by up to 140 nm, much larger than the original ~25 nm size of the vortex, offering unprecedented control. This invention provides a precise and localized method to manipulate superconducting properties, opening avenues for advanced research and potential applications in superconducting technology.

Contact

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.