Logan Bishop-Van Horn

All Publications

• Vortex dynamics induced by scanning SQUID susceptometry PHYSICAL REVIEW B Bishop-Van Horn, L., Mueller, E., Moler, K. A. 2023; 107 (22)

  View details for DOI 10.1103/PhysRevB.107.224509

  View details for Web of Science ID 001055185500006

• pyTDGL: Time-dependent Ginzburg-Landau in Python COMPUTER PHYSICS COMMUNICATIONS Bishop-Van Horn, L. 2023; 291

  View details for DOI 10.1016/j.cpc.2023.108799

  View details for Web of Science ID 001019050300001

• SuperScreen: An open-source package for simulating the magnetic response of two-dimensional superconducting devices COMPUTER PHYSICS COMMUNICATIONS Bishop-Van Horn, L., Moler, K. A. 2022; 280

  View details for DOI 10.1016/j.cpc.2022.108464

  View details for Web of Science ID 000863271300005

• Cryogen-free variable temperature scanning SQUID microscope. The Review of scientific instruments Bishop-Van Horn, L. n., Cui, Z. n., Kirtley, J. R., Moler, K. A. 2019; 90 (6): 063705

  Abstract

  Scanning Superconducting QUantum Interference Device (SQUID) microscopy is a powerful tool for imaging local magnetic properties of materials and devices, but it requires a low-vibration cryogenic environment, traditionally achieved by thermal contact with a bath of liquid helium or the mixing chamber of a "wet" dilution refrigerator. We mount a SQUID microscope on the 3 K plate of a Bluefors cryocooler and characterize its vibration spectrum by measuring SQUID noise in a region of sharp flux gradient. By implementing passive vibration isolation, we reduce relative sensor-sample vibrations to 20 nm in-plane and 15 nm out-of-plane. A variable-temperature sample stage that is thermally isolated from the SQUID sensor enables the measurement at sample temperatures from 2.8 K to 110 K. We demonstrate these advances by imaging inhomogeneous diamagnetic susceptibility and vortex pinning in optimally doped yttrium barium copper oxide above 90 K.

  View details for DOI 10.1063/1.5085008

  View details for PubMedID 31255038

• Characterization of Two Fast-Turnaround Dry Dilution Refrigerators for Scanning Probe Microscopy JOURNAL OF LOW TEMPERATURE PHYSICS Barber, M. E., Li, Y., Gibson, J., Yu, J., Jiang, Z., Hu, Y., Ji, Z., Nandi, N., Hoke, J. C., Bishop-Van Horn, L., Arias, G. R., Van Harlingen, D. J., Moler, K. A., Shen, Z., Kou, A., Feldman, B. E. 2024

  View details for DOI 10.1007/s10909-023-03035-4

  View details for Web of Science ID 001190209400002

• Local imaging of diamagnetism in proximity-coupled niobium nanoisland arrays on gold thin films PHYSICAL REVIEW B Horn, L., Zhang, I. P., Waite, E. N., Mondragon-Shem, I., Jensen, S., Oh, J., Lippman, T., Durkin, M., Hughes, T. L., Mason, N., Moler, K. A., Sochnikov, I. 2022; 106 (5)

  View details for DOI 10.1103/PhysRevB.106.054521

  View details for Web of Science ID 000875057900004

• Imaging anisotropic vortex dynamics in FeSe PHYSICAL REVIEW B Zhang, I. P., Palmstrom, J. C., Noad, H., Bishop-Van Horn, L., Iguchi, Y., Cui, Z., Mueller, E., Kirtley, J. R., Fisher, I. R., Moler, K. A. 2019; 100 (2)

  View details for DOI 10.1103/PhysRevB.100.024514

  View details for Web of Science ID 000476686700006