Nanoscale quantum devices
We study working nanoscale quantum devices at their operating conditions with highest possible spatial resolution. We do this by combining high-resolution transmission electron microscopy, electromagnetic field mapping, electrical property measurements, and cooling down to 5 K. Our current research interests include superconducting low-Tc and high-TcJosephson junctions, quantum interferometers (nanoSQUIDs), two-dimensional materials, and van der Waals heterostructure devices. Our aim is to understand the interplay between structure, electrical and magnetic properties at the atomic scale in quantum materials and devices.
Research Topics:
- Superconducting nanostructures: low-Tc and high-Tc Josephson junctions and nanoSQUIDs
Contact: Michael Faley - Two-dimensional materials and van der Waals heterostructure devices
Contact: Joachim Thomsen
Points of contact
Prof. Dr. Michael Faley
Scientific staff at ER-C-1
- er-c
- er-c-1
Room 60
Dr. Joachim Thomsen
Scientific Staff at ER-C-1
- er-c
- er-c-1
Room 3081
Publications
M. I. Faley, J. V. Vas, P.-H. Lu, R. E. Dunin-Borkowski, “NanoSQUIDs with proximity effect nanobridge Josephson junctions for future applications in electron microscopy,” IEEE Transactions on Applied Superconductivity, 35, 5, 1600105 (2025). https://doi.org/10.1109/TASC.2024.3502572
J. D. Thomsen, Y. Wang, H. Flyvbjerg, K. Watanabe, T. Taniguchi, P. Narang, F. M Ross. “Direct visualization of defect-controlled diffusion in van der Waals gaps”. Advanced Materials, 36, 39, 2403989 (2024). https://doi.org/10.1002/adma.202403989
M. I. Faley. “Nanodimensional superconducting quantum interference devices”. In: Encyclopedia of Condensed Matter Physics, 2e, 2, 702-711. Oxford: Elsevier (2024). https://doi.org/0.1016/B978-0-323-90800-9.00161-X
J. D. Thomsen, M.-G. Han, A. N. Penn, A. C. Foucher, M. Geiwitz, K. S. Burch, L. Dekanovsky, Z. Sofer, Y. Liu, C. Petrovic, F. M. Ross, Y. Zhu, P. Narang. “Effect of Surface Oxidation and Crystal Thickness on the Magnetic Properties and Magnetic Domain Structures of Cr2Ge2Te6”. ACS Nano, 18, 21, 13458-13467 (2024). https://doi.org/10.1021/acsnano.3c09858
J. Williams, M. I. Faley, J. V. Vas, P. Lu, R. E. Dunin-Borkowski “TEM Sample Preparation of Lithographically Patterned Permalloy Nanostructures on Silicon Nitride Membrane”. Beilstein Journal of Nanotechnology, 15, 1–12 (2024). https://doi.org/10.3762/bjnano.15.1.
M.-G. Han, J. D. Thomsen, J. P. Philbin, J. Mun, E. Park, F. Camino, L. Děkanovský, C. Liu, Z. Sofer, P. Narang, F. M. Ross, Y. Zhu. “Electric-Field Control of Magnetic Skyrmion Chirality in a Centrosymmetric 2D van der Waals Magnet”. arXiv preprint, arXiv:2406.00785 (2024). https://doi.org/10.48550/arXiv.2406.00785
M. I. Faley, J. Williams, P.-H. Lu, R. E. Dunin-Borkowski “TiN-NbN-TiN and Permalloy Nanostructures for Applications in Transmission Electron Microscopy”. Electronics 12, 9, 2144 (2023). https://doi.org/10.3390/electronics12092144
M. I. Faley, R. E. Dunin-Borkowski. “A Self-Flux-Biased NanoSQUID with Four NbN-TiN-NbN Nanobridge Josephson Junctions”, Electronics 11, 1704 (2022).
https://doi.org/10.3390/electronics11111704
M. I. Faley, H. Fiadziushkin, B. Frohn, P. Schüffelgen, R. E. Dunin-Borkowski, “TiN nanobridge Josephson junctions and nanoSQUIDs on SiN-buffered Si”. Supercond. Sci. Technol. 35, 065001 (2022). https://doi.org/10.1088/1361-6668/ac64cd
M. I. Faley, Y. Liu, and R. E. Dunin-Borkowski “Titanium Nitride as a New Prospective Material for NanoSQUIDs and Superconducting Nanobridge Electronics” Nanomaterials 11, 466 (12pp) (2021). https://doi.org/10.3390/nano11020466
M. I. Faley, T. Bikulov, V. Bosboom, A. A. Golubov, R. E. Dunin-Borkowski. “Bulk nanomachining of cantilevers with Nb nanoSQUIDs based on nanobridge Josephson junctions”, Supercond. Sci. Technol. 34, 035014 (2021). https://doi.org/10.1088/1361-6668/abda5c
R. Rodrigo, M. I. Faley, R. E. Dunin-Borkowski. “NanoSQUIDs based on Nb nanobridges”, Journal of Physics: Conference Series 1559, 012011 (2020). https://doi.org/10.1088/1742-6596/1559/1/012011