Publications
Articles are in reverse chronological order (most recent first).
You can also find my work on Google Scholar and arXiv.
Published in Physical Review B, 2023
In this paper, we used both SuperScreen (a 2D London-Maxwell solver) and pyTDGL (a 2D time-dependent Ginzburg-Landau solver) to simulate the dynamics of quantum vortices generated in a superconducting thin film by a local magnetic field source. Our modeling allowed us to identify distinct “fingerprints” of the dynamics of a small number of vortex-antivortex pairs generated during measurements of the local magnetic response of a superconducting thin film close to its critical temperature.
Citation: Logan Bishop-Van Horn*, Eli Mueller*, and Kathryn A. Moler, "Vortex dynamics induced by scanning SQUID susceptometry ", Phys. Rev. B 107, 224509 (2023). https://doi.org/10.1103/PhysRevB.107.224509
Published in Computer Physics Communications, 2023
This paper introduces pyTDGL, an open-source Python package that solves a 2D generalized time-dependent Ginzburg-Landau (TDGL) model.
Citation: Logan Bishop-Van Horn, "pyTDGL: Time-dependent Ginzburg-Landau in Python", Computer Physics Communications Volume 291, October 2023, 108799. https://doi.org/10.1016/j.cpc.2023.108799
Published in Physical Review B, 2022
This paper describes measurements and modeling of the local magnetic response of disordered arrays of proximity-coupled superconducting nano-islands.
Citation: Logan Bishop-Van Horn*, Irene P. Zhang*, Emily N. Waite, Ian Mondragon-Shem, Scott Jensen, Junseok Oh, Tom Lippman, Malcolm Durkin, Taylor L. Hughes, Nadya Mason, Kathryn A. Moler, and Ilya Sochnikov, "Local imaging of diamagnetism in proximity-coupled niobium nanoisland arrays on gold thin films", Phys. Rev. B 106, 054521 (2022) (Editors' Suggestion). https://doi.org/10.1103/PhysRevB.106.054521
Published in Computer Physics Communications, 2022
This paper introduces SuperScreen, an open-source Python package for simulating the response of 2D superconductors to trapped flux and applied time-independent or quasi-DC magnetic fields for any value of the effective magnetic penetration depth, Λ.
Citation: Logan Bishop-Van Horn and Kathryn A. Moler , "SuperScreen: An open-source package for simulating the magnetic response of two-dimensional superconducting devices", Computer Physics Communications Volume 280, November 2022, 108464. https://doi.org/10.1016/j.cpc.2022.108464
Published in Physical Review B, 2019
This paper describes measurements and modeling of anisotropic vortex pinning in the iron-based superconductor FeSe.
Citation: Irene P. Zhang, Johanna C. Palmstrom, Hilary Noad, Logan Bishop-Van Horn, Yusuke Iguchi, Zheng Cui, Eli Mueller, John R. Kirtley, Ian R. Fisher, and Kathryn A. Moler, "Imaging anisotropic vortex dynamics in FeSe", Phys. Rev. B 100, 024514 (2019). https://doi.org/10.1103/PhysRevB.100.024514
Published in Review of Scientific Instruments, 2019
This paper describes the construction of a variable temperature scanning SQUID microscope in a dry cryostat, enabling precision magnetometry and susceptometry at sample temperatures from 2.8 K to over 100 K.
Citation: Logan Bishop-Van Horn, Zheng Cui, John R. Kirtley, and Kathryn A. Moler , "Cryogen-free variable temperature scanning SQUID microscope", Review of Scientific Instruments 90, 063705 (2019). https://doi.org/10.1063/1.5085008
Published in Journal of Low Temperature Physics, 2016
This work describes the RF magnetic response of organic superconductors at low temperature and high magnetic field, where the field is applied parallel to the quasi-2D superconducting layers of the organic crystal. Under certain conditions, these materials are thought to host an unconventional phase known as the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase, in which Cooper pairs acquire a finite center of mass momentum leading to a spatially modulated superconducting order parameter.
Citation: Charles C. Agosta, Logan Bishop-Van Horn, Max Newman, "The Signature of Inhomogeneous Superconductivity", Journal of Low Temperature Physics 185, 220–229 (2016). https://doi.org/10.1007/s10909-016-1657-y
