Stefano Curiotto

Axe

nanomatériaux

E-mail

curiotto@cinam.univ-mrs.fr

Phone

+33(0)6 62 92 28 86

Fax

+33(0)4 91 41 89 16

Localisation

R1

Grade

CRHC

Fonction

chercheur

curiotto.jpg

Activité

surface and structure dynamics; low energy electron microscopy

Thèmes

Wetting, surface and interface properties.

Recherche

Study of surface and interface effects in metal-ceramic systems. As a model system, we are currently studying Cu crystals on sapphire(Al2O3) substrates with different orientations. A Cu layer is deposited in ultra high vacuum on the substrates. Annealing the sample in a reducing atmosphere at the Cu melting temperature (TmCu) breaks the layer in droplets. Decreasing the temperature the droplets solidify. On further annealing below TmCu the system Cu solid-sapphire should reach the equilibrium. After quenching we study the shape of the Cu crystals and of the substrates by SEM and AFM. In order to investigate the interface Cu-sapphire we plan to cut by Focus Ion Beam a thin selected portion of the samples and to analyze it by TEM.

Parcours

from October 2009 CNRS researcher 2007-2009 Postdoc 09/02/2007 PhD in Chemical Sciences 16/09/2003 Master degree in Materials Science

Publications

2020

2D Manipulation of Nanoobjects by Perpendicular Electric Fields: Implications for Nanofabrication

Stefano Curiotto, F. Cheynis, Pierre Müller, Frédéric Leroy

Acs Applied Nano Materials 3:1118-1122 (2020)10.1021/acsanm.9b02517

2019

2D nanostructure motion on anisotropic surfaces controlled by electromigration

Stefano Curiotto, Pierre Müller, Ali El-Barraj, Fabien Cheynis, Olivier Pierre-Louis, Frédéric Leroy

Applied Surface Science 469 (2019)10.1016/j.apsusc.2018.11.049

Shape changes of two-dimensional atomic islands and vacancy clusters diffusing on epitaxial (1 1 1) interfaces under the impact of an external force

Stefano Curiotto, Frédéric Leroy, Pierre Muller, Fabien Cheynis, Michail Michailov, Ali El-Barraj, Bogdan Ranguelov

Journal of Crystal Growth 520:42-45 (2019)10.1016/j.jcrysgro.2019.05.016

Atomic Transport in Au-Ge Droplets: Brownian and Electromigration Dynamics

Frédéric Leroy, Ali El-Barraj, Pierre Müller, Fabien Cheynis, Stefano Curiotto

Physical Review Letters (2019)

2017

Spatial inhomogeneity and temporal dynamics of a 2D electron gas in interaction with a 2D adatom gas

Fabien Cheynis, Stefano Curiotto, Frédéric Leroy, Pierre Müller

Scientific Reports 7:10642 (2017)10.1038/s41598-017-10300-6

Surface-dependent scenarios for dissolution-driven motion of growing droplets

Stefano Curiotto, Frédéric Leroy, Fabien Cheynis, Pierre Müller

Scientific Reports 7:902 (2017)10.1038/s41598-017-00886-2

Dewetting of patterned solid films: Towards a predictive modelling approach

M. Trautmann, F. Cheynis, F. Leroy, S. Curiotto, O. Pierre-Louis, Pierre Müller

Applied Physics Letters 110:263105 (2017)10.1063/1.4990005

Interplay between deoxidation and dewetting for ultrathin SOI films

M. Trautmann, F. Cheynis, F. Leroy, S. Curiotto, Pierre Müller

Applied Physics Letters 110:161601 (2017)10.1063/1.4980132

2016

Catalytically enhanced thermal decomposition of chemically grown silicon oxide layers on Si(001)

F. Leroy, T. Passanante, F. Cheynis, S. Curiotto, E. B. Bussmann, Pierre Müller

Applied Physics Letters 108:111601 (2016)10.1063/1.4941799

How to control solid state dewetting: A short review

F. Leroy, L. Borowik, F. Cheynis, Y. Almadori, S. Curiotto, M. Trautmann, J. C. Barbe, Pierre Müller

Surface Science Reports 71:391-409 (2016)10.1016/j.surfrep.2016.03.002

2015

Orientation relationship of Cu crystals on the sapphire (10-10) m-plane and (10-12) r-plane

D. Chatain, S. Curiotto, P. Wynblatt, H. Meltzman, W.D. Kaplan, G.S. Rohrer

Journal of Crystal Growth 418:57-63 (2015)

In-plane Si nanowire growthmechanis in absence of external Si flux

S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller

Nano Letters 15:4788-4792 (2015)

Self propelled motion of Au-Si droplets on Si(111) mediated by monoatomic step dissolution

S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller

Surface Science 632:1-8 (2015)

Shape transition in nano-pits after solid-phase etching of SiO2 by Si islands

F. Leroy, Y. Saito, S. Curiotto, F. Cheynis, Olivier Pierre-Louis, Pierre Müller

Applied Physics Letters 106:191601 (2015)10.1063/1.4921091

2014

Oxygen-induced inhibition of silicon-on-insulator dewetting

S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller

Applied Physics Letters 104:061603 (2014)

2013

Copper crystals on the (11-20) sapphire plane: orientation relationships, triple line ridges and interface shape equilibrium

S. Curiotto, H. Chien, H. Meltzman, S. Labat, P. Wynblatt, G.S. Rohrer, W.D. Kaplan, D. Chatain

Journal of Materials Science 48:3013-3026 (2013)

2011

Orientation Relationships of Copper Crystals on C-Plane Sapphire

S. Curiotto, H. Chien, H. Meltzman, P. Wynblatt, G.S. Rohrer, W.D. Kaplan, D. Chatain

Acta Materialia 59:5320-5331 (2011)10.1016/j.actamat.2011.05.008

Impact of the liquid phase shape on the structure of III-V nanowires

P. Krogstrup, S. Curiotto, E. Johnson, M. Aagesen, J. Nygaard, D. Chatain

Physical Review Letters 106:125505 (2011)10.1103/PhysRevLett.106.125505

2010

The solidification in the presence of a metastable miscibility gap: the case of Co-Cu and Co-Cu-X alloys

L. Battezzati, E. Johnson, N. Pryds, A. Penna, S. Curiotto

Materials Science Forum 649:41-46 (2010)

Interfacial properties of immiscible Co-Cu alloys

I. Egry, D Herlach, L. Ratke, M. Kolbe, D. Chatain, S. Curiotto, L. Battezzati, E. Johnson, N. Pryds

Journal of Materials Science 45:1979-1985 (2010)10.1007/s10853-009-3890-0

Surface, interfaces and phase transitions in Al-In monotectic alloys

I. Kaban, S. Curiotto, D. Chatain, W. Hoyer

Acta Materialia 58:3406-3414 (2010)

A model of oxygen adsorption at liquid copper surfaces

P. Wynblatt, S. Curiotto, D. Chatain

Surface Science 604:1369-1376 (2010)10.1016/j.susc.2010.04.015

2009

Giant magnetoresistance in melt spun Cu85Co10Ni5

S. Curiotto, E. Johnson, F. Celegato, M. Coisson, N. Pryds

Journal of Magnetism and Magnetic Materials 321:131-136 (2009)

Solid/liquid interfacial energy and wetting of Cu at Co surfaces and grain boundaries

S. Curiotto, D. Chatain

Scripta Materialia 60:40-43 (2009)

2008

The liquid metastable miscibility gap in the Cu-Co-Fe system

S. Curiotto, L. Battezzati, E. Johnson, M. Palumbo, N. Pryds

Journal of Materials Science 43:3253-3258 (2008)

Homogenization of highly alloyed Cu-Fe-Ni: a phase diagram study

I. Gallino, S. Curiotto, M. Baricco, M. Kassner, R. Busch

Journal of Phase Equilibria and Diffusion 29:131-135 (2008)

2007

Undercooling and demixing of copper-based alloys

M. Kolbe, J. Brillo, I. Egry, D.M. Herlach, L. Ratke, D. Chatain, N. Tinet, C. Antion, L. Battezzati, S. Curiotto, E. Johnson, N. Pryds

Microgravity Science and Technology 18:174-177 (2007)