Romain Danneau

Romain Danneau is a permanent scientist and Project Leader at the Karlsruhe Institute of Technology (KIT), affiliated with the Institute for Quantum Materials and Technologies (IQMT) and previously the Institute of Nanotechnology (INT). His research focuses on quantum transport in graphene and carbon-based nanostructures, with an emphasis on mesoscopic physics, superconductivity, and device applications. He leads a research group dedicated to the electronic properties of graphene, supported by internal and international collaborations across Europe, Asia, and the Americas.

His research interests include quantum transport, low-temperature solid-state physics, mesoscopic systems, graphene, carbon nanotubes, proximity-induced superconductivity, topological effects in condensed matter, and low-noise microwave measurements. His work bridges fundamental physics and applied nanoelectronics, particularly in designing and characterizing quantum devices operating at millikelvin temperatures.

The 15 most recent publications reveal a strong trend in hybrid superconducting graphene devices, multiterminal Josephson junctions, quantum interference, and the manipulation of Cooper pairs. Key subfields include Andreev reflection, ballistic transport, spin-valley coupling, Floquet engineering, and phase-coherent phenomena. His recent work increasingly explores topological aspects and non-local quantum effects in graphene-based systems.

• Australian Research Council Discovery Project Award Fellowship (2005)
• Invited professorship from Sejong University, Seoul, Korea (2012)
• Grant for large equipment from KIT-DFG (2011)
• Grant for small equipment from KIT-DFG excellence initiatives (2009)

Romain Danneau has supervised students such as Christian and Julien, who completed theses on graphene microwave transistors and proximity-induced superconductivity, respectively. He has secured significant funding from the DFG, EU (FP7 programs), and KIT-DFG initiatives, including grants exceeding €450,000 for equipment and collaborative projects. His leadership in the EU Tempus IV XNEM project highlights his role in developing nanoscience education in the MENA region.

He leads the Graphene team at INT/IQMT, which benefits from advanced infrastructure such as a cryo-free dilution refrigerator (BlueFors LD250) with a 12 T magnet, enabling millikelvin measurements. His group collaborates internationally and focuses on both fundamental quantum phenomena and device applications in graphene and 2D materials.