University of Notre Dame Du Lac

Los Alamos National Laboratory, LLC

Boldizsar Janko

Cynthia Reichhardt

Charles Reichhardt

Dipanjan Ray

Choongseop Lee

Imre Derenyi

Disclosed is a method and apparatus for strongly enhancing vortex pinning by conformal crystal arrays. The conformal crystal array is constructed by a conformal transformation of a hexagonal lattice, producing a non-uniform structure with a gradient where the local six-fold coordination of the pinning sites is preserved, and with an arching effect. The conformal pinning arrays produce significantly enhanced vortex pinning over a much wider range of field than that found for other vortex pinning geometries with an equivalent number of vortex pinning sites, such as random, square, and triangular.

Method and apparatus for enhancing vortex pinning by conformal crystal arrays

A system and method for removing unwanted magnetic flux from a superconductor. A device can generate a controllable electric field potential using an asymmetric electric field potential to efficiently remove the magnetic flux in different directions in the superconductor.

Reducing vortex densities and transporting vortices in superconductors

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Granger, IN, United States of America

Boldizsar Janko