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Energy Determination of Superconducting Vortex Lattices With Stochastic Methods Calculated on GPUs

Authors:
Manuel Rodriguez-Pascual
Jose A Moriñigo
Rafael Mayo-Garcia

Keywords: Superconducting vortices; nanostructures; heuristics; supercomputation; GPU

Abstract:
By fabricating Nb films on top of array of Ni nanodots with different geometries, the vortex lattice for specific values of the external applied magnetic field is modified by the array of periodic pinning potentials. In this work, a GPU-based code developed from scratch simulating this phenomenon is presented. It evaluates the vortex–vortex and the vortex–nanodot interactions providing the total interaction between vortices and pinning sites, as well as the position of the vortices in the array unit cell. This final position is obtained with different stochastic processes being able to simulate square, rectangular, or triangular arrays of nanodefects of different size. A computational performance study is also made

Pages: 82 to 88

Copyright: Copyright (c) IARIA, 2018

Publication date: May 20, 2018

Published in: conference

ISSN: 2308-412X

ISBN: 978-1-61208-635-4

Location: Nice, France

Dates: from May 20, 2018 to May 24, 2018