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R. Danneau

Dr. Romain Danneau

Project Leader
Graphene-based device structures
Research Unit: Charge Transport and Light-Matter Interaction in Carbon Nanosystems
Room: 0-155; Lab: 1-111
Phone: 0721/608-28896
romain danneauLwx8∂kit edu


Karlsruhe Institute of Technology (KIT)
Institute of Nanotechnology
Hermann-von-Helmholtz-Platz 1
76344 Eggenstein-Leopoldshafen, Germany


Scientific area of expertise:

Low temperature solid state physics, mesoscopic physics, graphene, low noise electronics and microwave measurements.


Education:

2003 Ph.D. in Physics, Joseph Fourier University, Grenoble, France.

2000 Master’s degree in Physics, University of Orsay, Paris, France.

 

Research experience:

Since September 2008: Research group leader at the Institute of Nanotechnology-KIT on "Electronic properties of graphene", Karlsruhe, Germany.

2006-2008: Postdoc in Pertti Hakonen's group at the Low Temperature Laboratory, Helsinki University of Technology (now Aalto University), Helsinki, Finland.

2004-2006: Postdoc and Australia Research Council fellow in Alex Hamilton's group at the School of Physics, University of New South Wales, Sydney, Australia.

2000-2003: PhD student at the Centre de Recherche sur les Très Basses Temperature, CNRS Grenoble, France. Title: "Dynamics and structures of charge density waves". Supervisors: Pierre Monceau and Roland Currat. Referees: Thierry Giamarchi, Thierry Klein and Sylvain Ravy.

2000: Master's project at SPEC-CEA Saclay, France. Title: "Contribution to the resistivity of a single domain wall in a ferromagnetic nanostructure". Supervisors: Olivier Klein and Michel Viret. Referees: Albert Fert and Bernard Roulet.

 

Grants and awards:

2014-2016: Member of the EU educational network Tempus IV XNEM from the FP7 program (100000€): responsible for the workpackage "Development of lecture and practical teaching material on nanosynthesis, nanofabrication, nanodevices and characterization of nanomaterials".

2012: Invited professorship from Sejong University, Seoul, Korea for lecturing on "Physics of graphene" (one month).

2011 "Grant for large equipment" (456000€) "Grant for large equipments" from the Karlsruhe Institute of Technology-DFG. Author: Romain Danneau. Title: “Cryo-free dilution refrigerator”.

2011-2013: Member of the EU network MMM@HPC from the FP7 program (360000€): responsible for the "carbon nanoelectronics" workpackage.

2011: Start-up funding grant from the YIN-KIT (8000€): "Study of graphene nanoribbons by electronic transport and AFM"

2010: Start-up funding grant from the YIN-KIT (11000€): "Stencil mask technique for the fabrication of ultraflat graphene field effect transistors".

2009 "Grant for small equipment" from KIT-DFG excellence initiatives (150000€):"High frequency electronics"

2006 Inipostdoc fellowship granted by the French Academia of Science (5000€): this grant is given to young French postdocs exiled overseas who wish to pass academic position contests.

2005 Australian Research Council Discovery Project Award Fellowship Project N° DP0666405. Title: Electronic with spin: Investigating spin-dependent electrical properties of semiconductor nano-devices. Funding: Au$ 345000 for three years (215000 €).

2000 Postgraduate Diploma award Scholarship (3000€) at University of Orsay, Paris, France.

 

List of publications (Metrics):

Published regular articles

 

35. Persistent hysteresis in graphene-mica van der Waals heterostructures

J. Mohrmann, K. Watanabe, T. Taniguchi and R. Danneau.

Nanotechnology 26, 015202 (2015).

 

34. Charge distribution in metallic single walled carbon nanotube-graphene junctions

P.T. Robert and R. Danneau.

New J. Phys. 16, 013019 (2014).

 

33. High-quality Si3N4 circuits as platform for graphene-based nanophotonic devices

N. Gruhler, C. Benz, H. Jang, J.-H. Ahn, R. Danneau and W.H.P. Pernice.

Opt. Express 21, 31678 (2013).

 

32. Graphene on boron nitride microwave transistors driven by graphene nanoribbon back-gates

C. Benz, M. Thürmer, F. Wu, Z. Ben Aziza, J. Mohrmann, H.v. Löhneysen, K. Watanabe, T. Taniguchi and R. Danneau.

Appl. Phys. Lett. 102, 033505 (2013).

 

31. Shot noise and conductivity at high bias in bilayer graphene: Signatures of electron-optical phonon coupling

A. Fay, R. Danneau, J.K. Viljas, F. Wu, M.Y. Tomi, J. Wengler, M. Wiesner and P.J. Hakonen.

Phys. Rev. B 84, 245427 (2011).

 

30. Graphene microwave transistors on sapphire substrates

E. Pallecchi, C. Benz, A.C. Betz, H.v. Löhneysen, B. Plaçais and R. Danneau.

Appl. Phys. Lett. 99, 113502 (2011).

 

29. Shot noise suppression and hopping conduction in graphene nanoribbons

R. Danneau, F. Wu, M.Y. Tomi, J.B. Oostinga, A.F. Morpurgo, and P.J. Hakonen.

Phys. Rev. B 82, 161405(R) (2010).

 

28. RF-electrometer using a carbon nanotube resonant tunnelling transistor

L.G. Lechner, F. Wu, R. Danneau, S.E.S. Andresen and P.J. Hakonen.

J. Appl. Phys. 107, 084316 (2010).

 

27. Single-walled carbon nanotube weak links in Kondo regime with zero-field splitting

F. Wu, R. Danneau, P. Queipo, E. Kauppinen, T. Tsuneta and P.J. Hakonen.

Phys. Rev. B 79, 073404 (2009).

 

26. Highly sensitive and broadband carbon nanotube radio-frequency single-electron transistor

S.E.S. Andresen, F. Wu, R. Danneau, D. Gunnarsson, and P.J. Hakonen.

J. Appl. Phys. 104, 033715 (2008).

 

25. Shot noise in ballistic graphene

R. Danneau, F. Wu, M.F. Craciun, S. Russo, M.Y. Tomi, J. Salmilehto, A.F. Morpurgo, and P.J. Hakonen.

Phys. Rev. Lett. 100, 196802 (2008).

 

24. The effect of screening long range Coulomb interactions on the metallic behavior in two-dimensional hole systems

L.H. Ho, W.R. Clarke, A.P. Micolich, R. Danneau, O. Klochan, M.Y. Simmons, A.R. Hamilton, M. Pepper and D.A. Ritchie.

Phys. Rev. B 77, 201402(R) (2008).

 

23. 0.7 structure and zero bias anomaly in ballistic hole quantum wires

R. Danneau, O. Klochan, W.R. Clarke, L.H. Ho, A.P. Micolich, M.Y. Simmons, A.R. Hamilton, M. Pepper and D.A. Ritchie.

Phys. Rev. Lett. 100, 016403 (2008).

 

22. Ballistic transport in induced one-dimensional hole systems

O. Klochan, W.R. Clarke, R. Danneau, A.P. Micolich, L.H. Ho, A.R. Hamilton, K. Muraki and Y. Hirayama.

Appl. Phys. Lett. 89, 092105 (2006).

 

21. Zeeman splitting in ballistic hole quantum wires

R. Danneau, O. Klochan, W.R. Clarke, L.H. Ho, A.P. Micolich, M.Y. Simmons, A.R. Hamilton, M. Pepper, D.A. Ritchie and U. Zülicke.

Phys. Rev. Lett. 97, 016403 (2006).

 

20. Conductance quantization and the 0.7x2e2/h conductance anomaly in one-dimensional hole systems

R. Danneau, W.R. Clarke, O. Klochan, A.P. Micolich, A.R. Hamilton, M.Y. Simmons, M. Pepper and D.A. Ritchie.

Appl. Phys. Lett. 88, 012107 (2006).

 

19. Sliding-induced decoupling and charge transfer between the coexisting Q1 and Q2 charge density waves in NbSe3

A. Ayari, R. Danneau, H. Requardt, L. Ortega, J.E. Lorenzo, P. Monceau, R. Currat, S. Brazovskii and G. Grübel.

Phys. Rev. Lett. 93, 106404 (2004).

 

18. Reply to Comment on Motional ordering of a charge density wave in the sliding state

R. Danneau, A. Ayari, D. Rideau, H. Requardt, J.E. Lorenzo, L. Ortega, P. Monceau, R. Currat and G. Grübel.

Phys. Rev. Lett. 91, 049704 (2003).

 

17. Motional ordering of a charge density wave in the sliding state

R. Danneau, A. Ayari, D. Rideau, H. Requardt, J.E. Lorenzo, L. Ortega, P. Monceau, R. Currat and G. Grübel.

Phys. Rev. Lett. 89, 106404 (2002).

 

16. Individual domain wall resistance in submicron ferromagnetic structures

R. Danneau, P. Warin, J.P. Attané, Y. Petej, C. Beigné, C. Fermon, O. Klein, A. Marty, F. Ott, Y. Samson and M. Viret.

Phys. Rev. Lett. 88, 157201 (2002).

 

15. Deep in situ dry-etch monitoring of III-V multilayer structures using laser reflectometry and reflectivity modelling

H. Moussa, R. Danneau, C. Mériadec, L. Manin, I. Sagnes and R. Raj.

J. Vac. Sci. Technol. A 20(3), 748 (2002).

 

 

Published proceedings:

 

14. Shot noise measurements in graphene

R. Danneau, F. Wu, M.F. Craciun, S. Russo, M.Y. Tomi, J. Salmilehto, A.F. Morpurgo and P.J. Hakonen.

Solid State Commun. 149, 1050 (2009).

                                                 

13. Controlling supercurrents using single-walled carbon nanotube weak links

F. Wu, R. Danneau, P. Queipo, E. Kauppinen, T. Tsuneta and P.J. Hakonen.

J. Phys.: Conf. Series 150, 052282 (2009).

 

12. Evanescent wave transport and shot noise in graphene: ballistic regime and effect of disorder

R. Danneau, F. Wu, M.F. Craciun, S. Russo, M.Y. Tomi, J. Salmilehto, A.F. Morpurgo and P.J. Hakonen.

J. Low. Temp. Phys. 153, 374 (2008).

 

11. 0.7 structure and zero bias anomaly in ballistic one-dimensional hole systems

R. Danneau, O. Klochan, W.R. Clarke, L.H. Ho, A.P. Micolich, M.Y. Simmons, A.R. Hamilton, M. Pepper and D.A. Ritchie.

Physica E 40, 1501 (2008).

 

10. Screening long range Coulomb interactions in two-dimensional hole systems using a bilayer heterostructure

L.H. Ho, W.R. Clarke, R. Danneau, O. Klochan, A.P. Micolich, A.R. Hamilton, M.Y. Simmons, M. Pepper and D.A. Ritchie.

Physica E 40, 1700 (2008).

 

9. Anisotropic Zeeman splitting in ballistic one-dimensional hole systems

R. Danneau, O. Klochan, W.R. Clarke, L.H. Ho, A.P. Micolich, M.Y. Simmons, A.R. Hamilton, M. Pepper, D.A. Ritchie and U. Zülicke.

AIP Conference Proceedings 893, 699 (2007).

 

8. Conductance quantization in induced one-dimensional hole systems

O. Klochan, W.R. Clarke, R. Danneau, A.P. Micolich, L.H. Ho, A.R. Hamilton, K. Muraki and Y. Hirayama.

AIP Conference Proceedings 893, 681 (2007).

 

7. Ballistic transport in one-dimensional bilayer hole systems

R. Danneau, W. R. Clarke, O. Klochan, L.H. Ho, A.P. Micolich, A.R. Hamilton, M.Y. Simmons, M. Pepper and D.A. Ritchie.

Physica E 34, 550 (2006).

 

6. Switching effects and sliding-induced charge transfer between the coexisting Q1 and Q2 charge density waves in NbSe3

A. Ayari, R. Danneau, H. Requardt, L. Ortega, J.E. Lorenzo, P. Monceau, R. Currat, S. Brazovskii and G. Grübel.

J. Phys. IV 131, 125 (2005).

 

5. Increase of the charge density wave phase coherence in the sliding and the mode-locked state

R. Danneau, A. Ayari, D. Rideau, H. Requardt, J.E. Lorenzo, L. Ortega, P. Monceau, R. Currat, and G. Grübel.

J. Phys. IV 12, Pr9-177 (2002).

 

4. X-ray diffraction study of the transient structure of sliding charge density waves in NbSe3

H. Requardt, D. Rideau, R. Danneau, A. Ayari, F. Ya Nad, J.E. Lorenzo, P. Monceau, R. Currat, C. Detlefs, D. Smilgies and G. Grübel.

J. Phys. IV 12, Pr9-181 (2002).

 

3. Studies of the dynamics in charge density wave systems using inelastic X-ray scattering with meV-energy-resolution

H. Requardt, J.E. Lorenzo, R. Danneau, R. Currat and P. Monceau.

J. Phys. IV 12, Pr9-39 (2002).

 

Invited review articles:

 

2. The 0.7 anomaly in one-dimensional hole quantum wires

A.R. Hamilton, R. Danneau, O. Klochan, W.R. Clarke, A.P. Micolich, L.H. Ho, M.Y. Simmons, D.A. Ritchie, M. Pepper, K. Muraki and Y. Hirayama.

J. Phys. Condens. Matter. 20, 164205 (2008).

 

1. Quantum transport in one-dimensional GaAs hole systems

A.R. Hamilton, O. Klochan, R. Danneau, W.R. Clarke, L.H. Ho, A.P. Micolich, M.Y. Simmons, M. Pepper, D.A. Ritchie, K. Muraki and Y. Hirayama.

Int. J. Nanotechnology 5, 318 (2008).