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Nano-electro-mechanics studies the intertwined dynamics of mechanical and electronic degrees of freedom at the nanometer scale. In addition to its technological promises, the field plays a central role in our quest for a fundamental understanding of the physics at the border between the microscopic and macroscopic realms. Many devices merging nano-mechanical resonators with nano-electronics have been studied over the past decade or so, but only very recently have we come tantalizingly close to realizing and probing quantum states of nano-electro-mechanical systems.
If quantum coherence can be achieved in both the electronic and vibronic degrees of freedom, the important question whether or not quantum nanoelectromechanical (NEM) entanglement can be induced in structures based, e.g., on suspended nanowires can be asked. With a view towards answering such questions, two main research directions being pursued are the investigation of methods for efficient cooling of the mechanical (vibronic) subsystem and the exploration of new scenarios for quantum nanoelectromechanical manipulations. In the first direction NEM effects are crucial for cooling to the quantum regime, in the second for manipulations of the quantum NEM system.
Selected Publications 2001-2012
- R. I. Shekhter, A. Pulkin and M. Jonson: Spintronic mechanics of a magnetic nanoshuttle, Phys. Rev. B 86, 100404(R) (2012).
- A. M. Kadigrobov, S. Andersson, H.-C. Park, D. Radic, R. I. Shekhter, M. Jonson and V. Korenivski: Thermal-magnetic-electric oscillator based on spin-valve effect, J. Appl. Phys. 111, 044315 (2012).
- C. Joshi, J. Larson, M. Jonson, E. Andersson and P. Öhberg: Entanglement of distant optomechanical systems, Phys. Rev. A 85 (3) 033805 (2012).
- Yu. G. Naidyuk, O. P. Balkashin, V.V. Fisun, and I. K. Yanson, A. M. Kadigrobov, R. I. Shekhter, M. Jonson, V. Neu, M. Seifert S. Andersson, and V. Korenivski: Stimulated emission and absorption of photons in magnetic point contacts, New J. Phys. 14, 093021 (2012).
- D. Radic, A. Nordenfelt, A. M. Kadigrobov, R. I. Shekhter, M. Jonson and L. Y. Gorelik: Spin controlled nanomechanics induced by single-electron tunneling, Phys. Rev. Lett. 107, 236802 (2011).
- F. Santandrea, L. Y. Gorelik, R. I. Shekhter and M. Jonson: Cooling of nanomechanical resonator by thermally activated single-electron transport, Phys. Rev. Lett. 106, 186803 (2011).
- W.-R. Hannes, M. Jonson and M. Titov: Electron-hole asymmetry in two-terminal graphene devices, Phys. Rev. B 84, 045414 (2011).
- R. I. Shekhter, A. M. Kadigrobov, E. I. Smotrova, A. I. Nosich, M. Jonson and V. Korenivski: Sub-wavelength terahertz spin-flip laser based on a magnetic point-contact array, Opt. Lett. 36 (13) 2381-2383 (2011).
- C. Joshi, M. Jonson, E. Andersson and P. Öhberg: Quantum entanglement of anharmonic oscillators, J. Phys. B: At. Mol. Opt. Phys. 44, 245503 (2011).
- C. Joshi, A. Hutter, F. E. Zimmer, M. Jonson, E. Andersson and P. Öhberg: Quantum entanglement of nanocantilevers, Phys. Rev. A 82, 043846 (2010).
- P. Utko, R. Ferone, I. V. Krive, R. I. Shekhter, M. Jonson, et al.: Nanoelectromechanical coupling in fullerene peapods probed by resonant electrical transport experiments, Nat. Commun. 1, 37 (2010).
- G. Sonne, M. E. Peña-Aza, L. Y. Gorelik, R. I. Shekhter, and M. Jonson: Cooling of a suspended nanowire by an AC Josephson current flow, Phys. Rev. Lett. 104, 226802 (2010).
- L. M. Jonsson, F. Santandrea, L. Y. Gorelik, R. I. Shekhter and M. Jonson: Self-organization of irregular NEM vibrations in multi-mode shuttle structures, Phys. Rev. Lett. 100, 186802 (2008).
- A. Isacsson, L. M. Jonsson, J. M. Kinaret and M. Jonson: Electronic superlattices in corrugated graphene, Phys. Rev. B 77, 035423 (2008).
- R. I. Shekhter, L. Y. Gorelik, L. I. Glazman and M. Jonson: Electronic Aharonov-Bohm effect induced by quantum vibrations, Phys. Rev. Lett. 97, 156801 (2006).
- L. Y. Gorelik, S. I. Kulinich, R. I. Shekhter, M. Jonson and V. M. Vinokur: Coulomb promotion of spin-dependent tunneling, Phys. Rev. Lett. 95, 116806 (2005).
- D. Fedorets, L. Y. Gorelik, R. I. Shekhter and M. Jonson: Quantum shuttle phenomena in a nanoelectromechanical single-electron transistor, Phys. Rev. Lett. 92, 166801 (2004).
- L. Y. Gorelik, R. I. Shekhter, V. M. Vinokur, D. E. Feldman, V. I. Kozub and M. Jonson: Electrical manipulation of nanomagnets, Phys. Rev. Lett. 91, 088301 (2003).
- M. V. Voinova, M. Jonson and B. Kasemo: Missing mass effect in biosensor's QCM applications, Biosensors and Bioelectronics 17 (10), 835-841 (2002).
- A. Isacsson, L. Y. Gorelik, R. I. Shekhter, Y. M. Galperin, and M. Jonson: Mechanical Cooper pair transportation as a source of long distance superconducting phase coherence, Phys. Rev. Lett. 89, 277002 (2002).
- L. Y. Gorelik, A. Isacsson, Y. M. Galperin, R. I. Shekhter, and M. Jonson: Coherent transfer of Cooper pairs by a movable grain, Nature 411, 454 (2001).
- A. Kadigrobov, R. I. Shekhter, and M. Jonson: Quantum spin fluctuations as a source of long-range proximity effects in diffusive ferromagnet-superconductor structures, Europhys. Lett. 54, 394-400 (2001).
Mats Jonson joined Heriot-Watt University in July 2007 on a half time appointment as Professor of Physics. He received his M.Sc. in Engineering Physics at Chalmers University of Technology, Gothenburg, Sweden, in 1971 and got his Ph.D. in Theoretical Physics from the same university in 1978. After a postdoctoral appointment at Indiana University he returned to Gothenburg and held various positions at Gothenburg University and Chalmers until he was appointed to a chair in Condensed Matter Physics at Chalmers in 1993. He moved to the University of Gothenburg in 2005, where he is now Professor of Condensed Matter Physics with a half time leave of absence.
His research interests are in the field of mesoscopic physics, where he is particularly interested in nanoelectromechanical systems. Mats Jonson is a member of the Royal Swedish Academy of Sciences and served on its Nobel Committee for Physics 1996–2005 and 2013. He is also a member of the Royal Society of Arts and Sciences (Gothenburg, Sweden) and foreign member of both the Korean Academy of Science and Technology and the Finnish Academy of Science and Letters. Since 2009 he is a Guest Professor at Konkuk University, Seoul, Republic of Korea (where until 2013 he participated in the Korean World Class University (WCU) programme) and is a member of the advisory board of NTT Basic Research Laboratories (Atsugi, Japan).