Scientific publications

  • Joel Hätinen, Emma Mykkänen, Klaara Viisanen, Alberto Ronzani, Antti Kemppinen, Lassi Lehtisyrjä, Janne Lehtinen and Mika Prunnila. Thermal resistance in superconducting flip-chip assemblies. Appl. Phys. Lett. 123, 152202 (2023).
  • J. Hätinen, A. Ronzani, R. P. Loreto, E. Mykkänen, A. Kemppinen, K. Viisanen, T. Rantanen, J. Geisor, J. Lehtinen, M. Ribeiro, J-P. Kaikkonen, O. Prakash, V. Vesterinen, W. Förbom, E.T. Mannila, M. Kervinen, J. Govenius, M. Prunnila. Efficient electronic cooling above 2 K by niobium-based superconducting tunnel junctions. https://doi.org/10.48550/arXiv.2403.08655
  • Samuli Autti, Jonathan R. Prance and Mika Prunnila.“On-chip quantum confinement refrigeration overcoming electron-phonon heat leaks.” Physical Review B 111, L161404 (2025). https://doi.org/10.1103/PhysRevB.111.L161404.
  • Pankaj Sethi, Om Prakash, Jukka-Pekka Kaikkonen, Mikael Kervinen, Elsa T. Mannila, Mário Ribeiro, Debopam Datta, Christopher W. Förbom, Jorden Senior, Renan P. Loreto, Joel Hätinen, Klaara Viisanen, Jukka I. Väyrynen, Alberto Ronzani, Antti Kemppinen, Visa Vesterinen, Mika Prunnila and Joonas Govenius.“Native-oxide-passivated trilayer junctions for superconducting qubits.” Physical Review Applied 24, 064056 (2025). https://doi.org/10.1103/tblt-589d.
  • Mika Prunnila.“Chip-scale cooling of cryogenic microsystems.” In 2026 10th IEEE Electron Devices Technology & Manufacturing Conference (EDTM), pp. 1–3 (2026). https://doi.org/10.1109/EDTM65772.2026.11497115.

Preprints

  • Juho Luomahaara, Kristupas Razas, Omid Sharifi Sedeh, Renan P. Loreto, Janne S. Lehtinen, Mingchi Xu, Armel A. Cotten, Aldo Tarascio, Peter Müller, Nikolai Yurttagül, Lassi Lehtisyrjä, Leif Grönberg, Christian P. Scheller, Jonathan R. Prance, Michael D. Thompson, Richard P. Haley, Mika Prunnila and Dominik M. Zumbühl.“A scalable non-superconducting tunnel junction technology.” arXiv:2602.14637 (2026). https://doi.org/10.48550/arXiv.2602.14637.
  • Joel Hätinen, Renan Pires Loreto, Arvind Kumar, Jani Taskinen and Mika Prunnila.“Electronic cooling of a TiW alloy normal-metal island using Nb-based superconducting tunnel junctions.” arXiv:2608.24455 (2026). https://doi.org/10.48550/arXiv.2608.24455.

Thesis

  • Joel Geisor.“Fabrication and characterization of asymmetric superconducting tunnel junctions.” Bachelor’s thesis, Aalto University School of Science (2023). View the thesis record in Aaltodoc. The electronic thesis is restricted to Aalto users, but its bibliographic record is publicly accessible.
  • Katariina Varpio.“Electropolymerization and Low-Temperature Conductivity Analysis of Conducting Polymers for Quantum Interface Applications.” Master’s thesis, University of Turku (2026). Download the thesis from UTUPub.

Open research data

 

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