Department

Center for Mesoscopic Sciences, Division of Broadband Multiscale Analysis

Biography

2006 B.S. Ritsumeikan University
2011 Ph.D. Kyoto University
2008 JSPS Research Fellow, Kyoto University
2011 JSPS Research Fellow, Fritz-Haber Institute
2013 Group leader, Fritz-Haber Institute
2020 Associate Professor, Institute for Molecular Science (additional post) (-2021.3)
2020 Guest Professor, Institute for Catalysis, Hokkaido University
2021 Associate Professor, Institute for Molecular Science
       Associate Professor, The Graduate University for Advanced Studies
2022 Adjunct Associate Professor, Department of Chemistry, Graduate School of Science, Kyoto University(until March 2024)
2022 Sep. Part-time Lecturer, Tokyo Institute of Technology (until March 2023)
2024 Guest Associate Professor, Graduate School of Engineering Science, Osaka University

Main research themes

Open a new frontier of nano-science using state-of-the-art scanning probe microscopy

Scanning probe microscopy, Nanoscale optical spectroscopy, Plasmonics, Single-molecule chemistry, Hydrogen dynamics, Molecular electronics

Annual Review : PDF

Selected Publications

1. S. Liu, A. Hammud, I. Hamada, M. Wolf, M. Müller, T. Kumagai, Nanoscale coherent phonon spectroscopy. Sci. Adv. 8, eabq5682 (2022).
2. B. Cirera, M. Wolf, T. Kumagai, Joule Heating in Single-Molecule Point Contacts Studied by Tip-Enhanced Raman Spectroscopy. ACS Nano 16, 16443 (2022).
3. S. Liu, M. Wolf, T. Kumagai, Nanoscale Heating of an Ultrathin Oxide Film Studied by Tip-Enhanced Raman Spectroscopy. Phys. Rev. Lett. 128, 206803 (2022).
4. B. Cirera, Y. Litman, C. Lin, A. Akkoush, A. Hammud, M. Wolf, M. Rossi, T. Kumagai, Charge Transfer-Mediated Dramatic Enhancement of Raman Scattering upon Molecular Point Contact Formation. Nano Lett. 22, 2170 (2022).
5. S. Liu, B. Cirera, Y. Sun, I. Hamada, M. Müller, A. Hammud, M. Wolf, T. Kumagai, Dramatic enhancement of tip-enhanced Raman scattering mediated by atomic point contact formation. Nano Lett. 20, 5879 (2020).
6. S. Liu, M. Müller, Y. Sun, I. Hamada, A. Hammud, M. Wolf, T. Kumagai, Resolving the Correlation between Tip-Enhanced Resonance Raman Scattering and Local Electronic States with 1 nm Resolution. Nano Lett. 19, 5725–5731 (2019).
7. H. Böckmann, S. Liu, M. Müller, A. Hammud, M. Wolf, T. Kumagai, Near-Field Manipulation in a Scanning Tunneling Microscope Junction with Plasmonic Fabry-Pérot Tips. Nano Lett. 19, 3597–3602 (2019).
8. H. Böckmann, S. Gawinkowski, J. Waluk, M.B. Raschke, M. Wolf, T. Kumagai, Near-Field Enhanced Photochemistry of Single Molecules in a Scanning Tunneling Microscope Junction. Nano Lett. 18, 152–157 (2018).
9. S. Liu, M. Wolf, T. Kumagai, Plasmon-Assisted Resonant Electron Tunneling in a Scanning Tunneling Microscope Junction. Phys. Rev. Lett. 121, 226802 (2018).
10. M. Koch, M. Pagan, M. Persson, S. Gawinkowski, J. Waluk, T. Kumagai, Direct Observation of Double Hydrogen Transfer via Quantum Tunneling in a Single Porphycene Molecule on a Ag(110) Surface. J. Am. Chem. Soc. 139, 12681–12687 (2017).
11. J. N. Ladenthin, T. Frederiksen, M. Persson, J. C. Sharp, S. Gawinkowski, J. Waluk, T. Kumagai, Force-induced tautomerization in a single molecule. Nature Chemistry 8, 935–940 (2016).
12. T. Kumagai, F. Hanke, S. Gawinkowski, J. Sharp, K. Kotsis, J. Waluk, M. Persson, L.Grill, Controlling intramolecular hydrogen transfer in a porphycene molecule with single atoms or molecules located nearby. Nature Chemistry 6, 41–46 (2014).
13. T. Kumagai, A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, T. Frederiksen, H. Ueba, Hydrogen relay reactions in real space. Nature Materials 11, 167–172 (2012).