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Massimo Rontani

CNR Senior Researcher

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fax +39 059 2055651

massimo.rontani@nano.cnr....

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Address

CNR NANO Research Center S3
Via Campi 213a
41125 Modena MO, Italy

Running projects

Node coordinator of the EU-FP7 Initial Training Network Project 2011-2015 Indirect excitons: Fundamental physics and applications (INDEX).

Node coordinator of PRIN 2012 Project 2014-2017 Imaging MEtallorganic MOlecules: Scanning tunneling spectroscopy and many-body theory (MEMO).

Research interests

Theoretical investigation of few- and many-body effects in nanostructures and low-dimensional systems. The main research lines are:

Correlated few-electron states in quantum dots and molecules
Recent highlights:
F. Rossella, A. Bertoni, D. Ercolani, M. Rontani, L. Sorba, F. Beltram, S. Roddaro, Nanoscale spin rectifiers controlled by the Stark effect, Nature Nanotech. (2014), in press.
S. Pecker, F. Kuemmeth, A. Secchi, M. Rontani, D. C. Ralph, P. L. McEuen, S. Ilani, Observation and spectroscopy of a two-electron Wigner molecule in an ultraclean carbon nanotube, Nature Phys. 9, 576 (2013).

Exciton condensates
Recent highlights:
M. Rontani, Anomalous magnetization of a carbon nanotube as an excitonic insulator, Phys. Rev. B 90, 195415 (2014).

Ultra-cold Fermi gases
Recent highlights:
M. Rontani, Tunneling theory of two interacting atoms in a trap, Phys. Rev. Lett. 108, 115302 (2012).


Main international collaborations
L. J. Sham (Univ. California San Diego), theory of exciton condensates [PRB 80, 075309 (2009); PRL 94, 186404 (2005); APL 77, 3033 (2000)].
S. Tarucha (Univ. of Tokyo), single-electron tunneling spectroscopy in semiconductor quantum dots [PRL 95, 236801 (2005); PRB 69, 85327 (2004)].
A. Pinczuk (Columbia Univ., NY) and V. Pellegrini (NEST, Pisa), inelastic light scattering in quantum dots [PRB 85, 033307 (2012); PRL 104, 246802 (2010); Nat. Phys. 4, 467 (2008); PRL 95, 266806 (2005)].
R. Wiesendanger (Hamburg University), wave function imaging of semiconductor quantum dots via scanning tunnelling spectroscopy [Nano Lett. 7, 2701 (2007)].
S. M. Reimann (Univ. of Lund, Sweden), few-body effects in ultra-cold atomic gases [PRL 102, 060401 (2009)].
S. Ilani (Weizmann Institute, Israel), single-electron tunneling spectroscopy in carbon-nanotube quantum dots [Nat. Phys. 9, 576 (2013)].

Biographical sketch

Education
1997-1999 PhD in Physics, University of Modena, Italy.

Appointments
- March 2003 - present: CNR-NANO Research Center S3, Modena, Italy. Senior research staff member.
- December 1999 - February 2003: Department of Physics, University of Modena, Italy. INFM Postdoctoral Researcher.
- August 1998 - August 1999: Department of Physics, University of California Berkeley. Research activity, within the Italian PhD course, under the additional supervision of Prof. L. J. Sham (UCSD).

Other
Faculty of The School of Graduate Studies in Physics and Nanosciences, University of Modena.


Selected publications

F. Rossella, A. Bertoni, D. Ercolani, M. Rontani, L. Sorba, F. Beltram, S. Roddaro, Nanoscale spin rectifiers controlled by the Stark effect, Nature Nanotech. (2014), in press.

S. Pecker, F. Kuemmeth, A. Secchi, M. Rontani, D. C. Ralph, P. L. McEuen, S. Ilani, Observation and spectroscopy of a two-electron Wigner molecule in an ultraclean carbon nanotube, Nature Phys. 9, 576 (2013).

D. Toroz, M. Rontani, S. Corni, Proposed alteration of images of molecular orbitals obtained using a scanning tunneling microscope as a probe of electron correlation, Phys. Rev. Lett. 110, 018305 (2013).

M. Rontani, Tunneling theory of two interacting atoms in a trap, Phys. Rev. Lett. 108, 115302 (2012).

M. Rontani, Artificial atoms: Shape the way, Nature Mat. 10, 173 (2011).

M. Rontani, J. Armstrong, Y. Yu, S. Åberg, S. M. Reimann, Cold fermionic atoms in two-dimensional traps - Pairing versus Hund's rule, Phys. Rev. Lett. 102, 060401 (2009).

S. Kalliakos, M. Rontani, V. Pellegrini, C. P. Garcia, A. Pinczuk, G. Goldoni, E. Molinari, L. N. Pfeiffer, K. W. West, A molecular state of correlated electrons in a quantum dot, Nature Phys. 4, 467 (2008).

M. Rontani, Friedel sum rule for an interacting multiorbital quantum dot, Phys. Rev. Lett. 97, 076801 (2006).

M. Rontani, L. J. Sham, Coherent transport in a homojunction between an excitonic insulator and semimetal, Phys. Rev. Lett. 94, 186404 (2005).


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