Curriculum vitae - Giacomo Baldi - CampusNet

Curriculum vitae - Giacomo Baldi
Giacomo Baldi, born in Parma (Italy), March 13, 1978.
Working address: Dipartimento di Fisica, Università degli Studi di Parma,
Viale G.P. Usberti 7/A, 43124 – Parma, Italy.
Personal Address: Via Corini 21, 43122 Parma, Italy.
e-mail: [email protected]
Web page: http://www.fis.unipr.it/home/giacomo.baldi/
Tel.:
office: +39 0521 905275
Fax.: +39 0521 905223
Working activity:
July 2006 – to present. Researcher of the IMEM-CNR Institute (Institute of Materials for Electronics and
Magnetism of the Italian National Research Council). In November 2010 I joined the Laboratory of
Molecular Nanotechnologies of the Physics Department of the Parma University, where I work in the
framework of a collaboration between the University and the IMEM-CNR Institute. Here I have widened my
research interests to include the dynamics and the rheology of colloids, nanoparticles and polymers in
confined geometry and the study of the mechanisms of resistive switching in organic and inorganic
memristor (memory-resistor) devices.
July 2006 – October 2010. Visiting Scientist at the inelastic X-ray scattering beamline ID16 at the European
Synchrotron Radiation Facility (ESRF) in Grenoble, France. During this four years period I worked full time
on the ID16 beamline, carrying on my research activity and contributing to the beamline development, in
collaboration with Prof. Giulio Monaco and Prof. Francesco Sette. I gave substantial contributions to the
improvement of the energy resolution of the spectrometer dedicated to high energy resolution experiments
( ⁄
), for the investigation of vibrational modes in glasses and liquids. I performed also
experiments using X-ray emission and absorption spectroscopies to determine the electronic structure of
materials. I contributed to the development and installation of a nine crystal analyser chamber for very high
frequency energy resolution experiments and to the design and implementation of a double pass spectrometer
for high contrast inelastic X-ray scattering experiments. A part of the work was devoted to the activity of
beamline commissioning and to the support to the user community as a local contact. The international
environment of the ESRF allowed me to establish collaborations that persist up to now and are giving fruitful
results.
December 2005 – June 2006. Collaboration with the University of Trento in the group of Prof. Aldo
Fontana. During this period I performed Brillouin light scattering experiments with ultraviolet radiation, both
in the laboratory and at the IUVS beamline at the Italian Synchrotron “Elettra”. A part of the activity was
devoted to the data analysis and interpretation, using specifically developed tools for data treatment (under
the Matlab environment).
Education:
November 2002 to December 2005. I carried out my PhD thesis work in Physics at the Physics Department,
Trento University, Italy. Thesis title: “Damping of Vibrational Excitations in Structural Glasses: a Brillouin
Scattering and Numerical Simulation Study”. Mention: Excellent. Advisor: Prof. Gabriele Viliani. A part of
the PhD project has been devoted to sample preparation and characterization, to light, X-ray and neutron
scattering experiments in the laboratory and at large scale facilities and to data analysis. I also dedicated an
important part of the work to numerical simulations. The main result of the PhD was the observation of a
crossover frequency, of about 150 GHz, marking the onset of a regime where the sound attenuation is
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disorder-dominated, revealing the presence of long-range correlations (length scale of a few tens of
nanometres) in the elastic properties of glasses. The experiments were conducted on two prototypical
glasses, v-SiO2 and v-GeO2. By means of numerical simulations I investigated a model system with
correlated random springs on a lattice. The proposed model allowed me to give a sound interpretation of the
experimental observations. The results of the thesis work have been published in seven papers appeared in
peer reviewed international journals, including one in the Physical Review Letters (this paper has been cited
54 times (WoS 06/2014)) and one in the Europhysics Letters.
July 2002. Laurea cum laude in Physics, Parma University, Italy. Advisor: Prof. Davide Cassi. Thesis title:
“Localization of Waves and Particles on Discrete Inhomogeneous Structures”. In this work I have presented
an innovative analytical method, based on the study of the motion of a random walker, that allows one to
determine the density of states of a general local Hamiltonian on a graph. The results have been published in
two peer reviewed papers appeared in the Physical Review E and the proceedings of an international school.
September 2000 to September 2001. One year at the University of Geneva. Erasmus exchange project.
July 1997. Diploma di maturità scientifica, 60/60, Liceo Scientifico G. Ulivi, Parma.
Scholarships and Grants:
Best student of the undergraduate course in Physics of the University of Parma for the first, second and third
year.
Attended PhD schools:
 National school for the physics of matter, "Single Molecule Biophysics", Torino, September 2004.
 National school for the physics of matter, "Neutron Spectroscopy and Synchrotron Radiation from
Disordered Systems, Surfaces and Interfaces", Torino, September 2003.
 International school of physics "E. Fermi", course CLV, "The Physics of Complex Systems, New
Advances and Perspectives", Varenna, July 2003.
Languages:
Italian: native
English: fluent (written and oral)
French: fluent (written and oral)
Research interests:
General framework: Physics of disordered materials and soft matter (liquids, supercooled liquids, glasses,
disordered solids, colloids, polymers).
 Dynamics of soft matter (polymers, colloids and nano-composites) close to the structural arrest.
 Glass transition, relaxation processes and dynamical slowing down.
 Propagation and attenuation of sound in structural glasses.
 Thermal conductivity of amorphous solids.
 Nature of the high frequency vibrational modes of glasses and liquids, density of vibrational states
and the “Boson Peak”.
 Non equilibrium behaviour of disordered matter: aging phenomena.
 Intra-molecular vibrational modes of liquids.
 Mechanisms of resistive switching in organic and inorganic memristor devices.
Technical skills:
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Brillouin and Raman scattering.
Inelastic X-ray and neutron scattering.
Photon-correlation spectroscopy, both with laser sources and synchrotron x-rays radiation.
Experience in molecular dynamics simulations on computer clusters.
Programming, data analysis and instruments control: C++, Fortran, Matlab, Origin, SPEC.
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Teaching and supervision activities:
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I’m member of the board of the PhD school in Physics of the Parma University.
I hold a PhD course on “Synchrotron light and disordered systems”.
I have co-supervised the thesis work of four Laurea students (A. Kovtun and F. Nazzani, 2012; R.
Santagati, 2011; S. Elisei, 2008) and three PhD students (M. Zanatta, 2011; B. Ruta, 2010; L.
Orsingher, 2009).
I have been teaching assistant of “General Physics” and of “Probability and Statistics” for the ICT
course at the Trento University (period 2003-2005).
I have been tutor of the first year students of the physics course of the Trento University (period
2003-2005).
Funding ID:
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I’m involved in the Project MaDEleNA, “Developing and Studying novel intelligent nanoMaterials
and Devices towards Adaptive Electronics and Neuroscience Applications”, financed by the
Provincia Autonoma di Trento, call "Grandi Progetti 2012" for the period: 2013-2016.
I have been the principal investigator, for the Italian side, of the collaboration project DYNANO
(“DYnamics and transport properties of NANOcrystalline and disordered systems: effects of the
grain size reduction from the mesoscopic range towards the atomic scale”) between CNR and the
French CNRS for the period 2012-2013 (grant: 4000 euros per year for travel expenses between Italy
and France).
I have been the scientific responsible of the project: “Innovative techniques of laser spectroscopy to
study soft matter and food”, funded by a bank foundation, Fondazione Monte Parma (grant: 5000
euros for 2013).
I have been involved in the PRIN 2007 project on “Vibrational dynamics and relaxation of densified
glasses and of confined disordered systems”, funded by the Italian Ministry of the University. Total
grant value: 210000 euros for the two years period 2009-2010.
I have been awarded more than 20 weeks of beam time at national and international research
facilities, synchrotron sources and neutron reactors, during the last five years. The beam time is
granted after the positive evaluation of a project proposal by a review panel.
Activity as a referee:
I’m referee for the following journals: Physical Review Letters, Physical Review B, Physical Review E,
Journal of Non-Crystalline Solids, Journal of Materials Science, Physica Status Solidi and Philosophical
Magazine.
Main collaborations:
I had and I still have the pleasure to collaborate with several scientists. A list of the main collaborations
include: U. Buchenau (Jülich), P. Bruna (Barcelona U.), L. Cristofolini (Parma U.), A. Chumakov (ESRF),
A. Fontana (Trento U.), V. M. Giordano (CNRS), S. Iannotta (CNR, Parma), M. Krisch (ESRF), A. Madsen
(European XFEL), C. Masciovecchio (Elettra), G. Monaco (ESRF), S. Rols (ILL), G. Ruocco (Roma “La
Sapienza”), B. Ruta (ESRF), F. Sacchetti (Perugia U.), W. Schirmacher (Munich U.), F. Sette (ESRF).
Publications list:
I have published 37 papers on peer-reviewed international journals (h-index = 11, total number of citations =
353, Web of Science, September 2014), including Nature Communications (1), Physical Review Letters (8),
Physical Review B (5), Physical Review E (2), Europhysics Letters, Journal of Chemical Physics (5), Journal
of Physics: Condensed Matter (2), Journal of Non-Crystalline Solids (2). I have signed fifteen of those
papers as main author.
Published papers:
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37. G. Baldi, S. Battistoni, G. Attolini, M. Bosi, C. Collini, S. Iannotta, L. Lorenzelli, R. Mosca, J. S. Ponraj,
R. Verucchi, and V. Erokhin, “Logic With Memory: And Gates Made Of Organic And Inorganic Memristive
Devices”, Semicond. Sci. Technol. 29, 104009 (2014).
36. B. Ruta, G. Baldi, Y. Chushkin, B. Rufflé, L. Cristofolini, A. Fontana, M. Zanatta, and F. Nazzani,
“Revealing the fast atomic motion of network glasses”, Nat. Commun. 5, 3939 (2014).
35. D. Orsi, B. Ruta, Y. Chushkin, A. Pucci, G. Ruggeri, G. Baldi, T. Rimoldi and L. Cristofolini,
“Controlling the dynamics of a bidimensional gel above and below its percolation transition”, Phys. Rev. E
89, 042308 (2014).
34. G. Baldi, V. M. Giordano, B. Ruta, R. Dal Maschio, A. Fontana, and G. Monaco, “Anharmonic Damping
of Terahertz Acoustic Waves in a Network Glass and Its Effect on the Density of Vibrational States”, Phys.
Rev. Lett. 112, 125502 (2014).
33. M. Zanatta, G. Baldi, R. S. Brusa, W. Egger, A. Fontana, E. Gilioli, S. Mariazzi, G. Monaco, L. Ravelli,
and F. Sacchetti, “Structural Evolution and Medium Range Order in Permanently Densified Vitreous SiO2”,
Phys. Rev. Lett. 112, 045501 (2014).
32. A. I. Chumakov, G. Monaco, A. Fontana, A. Bosak, R. P. Hermann, D. Bessas, B. Wehinger, W. A.
Crichton, M. Krisch, R. Rüffer, G. Baldi, G. Carini Jr., G. Carini, G. D’Angelo, E. Gilioli, G. Tripodo, M.
Zanatta, B. Winkler, V. Milman, K. Refson, M. T. Dove, N. Dubrovinskaia, L. Dubrovinsky, R. Keding, and
Y. Z. Yue, “Role of Disorder in the Thermodynamics and Atomic Dynamics of Glasses”, Phys. Rev. Lett.
112, 025502 (2014).
31. G. Baldi, M. Zanatta, E. Gilioli, V. Milman, K. Refson, B. Wehinger, B. Winkler, A. Fontana, and G.
Monaco, “Emergence of crystal-like atomic dynamics in glasses at the nanometer scale”, Phys. Rev. Lett.
110, 185503 (2013).
30. B. Ruta, G. Baldi, G. Monaco, and Y. Chushkin, "Compressed correlation functions and fast aging
dynamics in metallic glasses", J. Chem. Phys. 138, 054508 (2013).
29. D. Orsi, L. Cristofolini, G. Baldi, and A. Madsen, "Heterogeneous and anisotropic dynamics of a 2D
Gel", Phys. Rev. Lett. 108, 105701 (2012).
This article deserved the cover of the Physical Review Letters and it has been selected by the European
Synchrotron Radiation Facility for the Highlights 2012.
28. B. Ruta, G. Baldi, F. Scarponi, D. Fioretto, V. M. Giordano, and G. Monaco, “Acoustic excitations in
glassy sorbitol and their relation with the fragility and the boson peak”, J. Chem. Phys. 137, 214502 (2012).
27. L. Simonelli, N. L. Saini, Y. Mizuguchi, Y. Takano, T. Mizokawa, G. Baldi, and G. Monaco, “Electronic
properties of FeSe1-xTex probed by x-ray emission and absorption spectroscopy”, J. Phys.: Cond. Matt. 24,
415501 (2012).
26. Davide Orsi, Giacomo Baldi, Pietro Cicuta, and Luigi Cristofolini, "On the relation between hierarchical
morphology and mechanical properties of a colloidal 2D gel system", Coll. and Surf. A 413, 71-77 (2012).
25. Giacomo Baldi, Valentina M. Giordano, and Giulio Monaco, “Elastic anomalies at terahertz frequencies
and excess density of vibrational states in silica glass”, Phys. Rev. B 83, 174203 (2011).
24. M. Zanatta, G. Baldi, S. Caponi, A. Fontana, C. Petrillo, F. Rossi, and F. Sacchetti, “Debye to non Debye
scaling of the Boson Peak dynamics: critical behavior and local disorder in vitreous germania”, J. Chem.
Phys. 135, 174506 (2011).
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23. P. Bruna, G. Baldi, E. Pineda, J. Serrano, J. B. Suck, D. Crespo, and G. Monaco, “Communication: Are
metallic glasses different from other glasses? A closer look at their high frequency dynamics”, J. Chem.
Phys. 135, 101101 (2011).
22. G. Baldi, V. M. Giordano, G. Monaco, and B. Ruta, “High frequency acoustic attenuation of vitreous
silica: new insight from inelastic x-ray scattering”, J. Non-Cryst. Solids 357, 538-541 (2011).
21. G. Baldi, A. Fontana, F. Rossi, and G. Monaco, “Raman scattering investigation of the boson peak in a
sodium silicate glass”, Philosophical Magazine 91, 1801 - 1808 (2011).
20. L. Orsingher, G. Baldi, A. Fontana, and F. Rossi, “The Raman coupling function in permanently
densified GeO2 glasses”, Philosophical Magazine 91, 1857 - 1863 (2011).
19. F. Rossi, G. Baldi, S. Caponi, R. Dal Maschio, A. Fontana, L. Orsingher, and M. Zanatta, “The
vibrational dynamics of GeO2 at the glass transition: a Raman and Brillouin scattering study”, Philosophical
Magazine 91, 1910 - 1916 (2011).
18. P. Bruna, G. Baldi, E. Pineda, J. Serrano, M. J. Duarte, D. Crespo and G. Monaco, “Acoustic properties
of metallic glasses in the mesoscopic regime by inelastic X-ray scattering”, J. Alloys and Compd. 509S, S95
- S98 (2011).
17. G. Baldi, V. M. Giordano, G. Monaco, and B. Ruta, “Sound Attenuation at Terahertz Frequencies and
the Boson Peak of Vitreous Silica”, Phys. Rev. Lett. 104, 195501 (2010).
Paper selected by the European Synchrotron Radiation Facility for the Highlights 2010.
16. L. Orsingher, G. Baldi, A. Fontana, L.E. Bove, T. Unruh, A. Orecchini, C. Petrillo, N. Violini, and F.
Sacchetti, “High frequency dynamics of vitreous GeSe2”, Phys. Rev. B 82, 115201 (2010).
15. B. Ruta, G. Baldi, V.M. Giordano, L. Orsingher, F. Scarponi, S. Rols, and G. Monaco, “Communication:
High-frequency acoustic excitations and boson peak in glasses: A study of their temperature dependence”, J.
Chem. Phys. 133, 041101 (2010).
14. M. Zanatta, G. Baldi, S. Caponi, A. Fontana, E. Gilioli, M. Krish, C. Masciovecchio, G. Monaco, L.
Orsingher, F. Rossi, G. Ruocco, and R. Verbeni, “Elastic properties of permanently densified silica: A
Raman, Brillouin light, and x-ray scattering study”, Phys. Rev. B 81, 212201 (2010) (Brief Report).
13. W. Schirmacher, C. Tomaras, B. Schmid, G. Baldi, G. Viliani, G. Ruocco, and T. Scopigno, “Sound
attenuation and anharmonic damping in solids with correlated disorder”, Condensed Matter Physics 13,
23606 (2010).
12. G. Baldi, A. Fontana, G. Monaco, L. Orsingher, S. Rols, F. Rossi, and B. Ruta, “Connection between
Boson Peak and Elastic Properties in Silicate Glasses”, Phys. Rev. Lett. 102, 195502 (2009).
11. G. Baldi, V. M. Giordano, G. Monaco, F. Sette, E. Fabiani, A. Fontana, and G. Ruocco, “Thermal
conductivity and terahertz vibrational dynamics of vitreous silica”, Phys. Rev. B 77, 214309 (2008).
10. G. Baldi, E. Fabiani, A. Fontana, V. Giordano, G. Monaco, G. Ruocco and F. Sette, “Contribution of the
terahertz vibrations to the high temperature thermal conductivity of vitreous silica”, Philosophical Magazine
88, 3915 (2008).
9. W. Schirmacher, B. Schmid, C. Tomaras, G. Viliani, G. Baldi, G. Ruocco and T. Scopigno, “Vibrational
excitations in systems with correlated disorder”, Physica Status Solidi (c) 5, 862-866 (2008).
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8. G. Baldi, P. Benassi, L. E. Bove, S. Caponi, E. Fabiani, D. Fioretto, A. Fontana, A. Giugni, M. Nardone,
M. Sampoli and F. Scarponi , “Dynamic to Static Crossove in the Acoustic Attenuation of Vitreous
Germania”, Europhys. Lett. 78, 36001 (2007).
7. S. Caponi, A. Fontana, F. Rossi, G. Baldi, and E. Fabiani, “Effect of temperature on the vibrational
density of states in vitreous SiO2 : A Raman study”, Phys. Rev. B 76, 092201 (2007).
6. A. Fontana, F. Rossi, G. Viliani, S. Caponi, E. Fabiani, G. Baldi, G. Ruocco and R. Dal Maschio, “The
Raman coupling function in disordered solids: a light and neutron scattering study on glasses of different
fragility”, J. Phys.: Cond. Matt. 19, 205145 (6pp) (2007)
5. G. Baldi, S. Caponi, A. Fontana, P. Benassi, A. Giugni, M. Nardone and M. Sampoli, “Low Temperature
Phonon Damping in Vitreous Silica Explored by UV Brillouin Spectroscopy”, Philosophical Magazine 87,
603-612 (2007).
4. C. Masciovecchio, G. Baldi, S. Caponi, L. Comez, S. Di Fonzo, D. Fioretto, A. Fontana, A. Gessini, S. C.
Santucci, F. Sette, G. Viliani, P. Vilmercati and G. Ruocco, “Evidence for a Crossover in the Frequency
Dependence of the Acoustic Attenuation in Vitreous Silica”, Phys. Rev. Lett. 97, 035501 (2006).
3. G. Baldi, S. Caponi, L. Comez, S. Di Fonzo, D. Fioretto, A. Fontana, A. Gessini, C. Masciovecchio, M.
Montagna, G. Ruocco, S. C. Santucci and G. Viliani, "Brillouin Ultraviolet Light Scattering on Vitreous
Silica", J. Non-Cryst. Solids 351, 1919-1923 (2005).
2. G. Baldi, R. Burioni and D. Cassi, "Localized States on Comb Lattices", Phys. Rev. E 70, 031111 (2004).
1. G. Baldi, R. Burioni and D. Cassi, "Localization of Waves and Particles on Comb Lattices", in The
Physics of Complex Systems (New Advances and Perspectives), Proceedings of the International School of
Physics "E. Fermi", course CLV, edited by F. Mallamace and H. E. Stanley (2004).
Invited presentations to conferences and workshops:
I have been invited to speak in more than ten national and international workshops and conferences,
including:
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“Optimization of Synthesis Protocols to Control the Nanostructure and the Morphology of Metal
Oxide Thin Films for Memristive Applications”, ICNAAM 2014 Conference, Symposium: “Adaptive
Materials, Devices and Systems Towards Unconventional Computing and Robotics: Modeling and
Implementation”, Rhodes, Greece, September 2014.
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“Emergence of crystal-like atomic dynamics in glasses at the nanometre scale”, 7th International
Discussion Meeting on Relaxations in Complex Systems (IDMRCS), Barcelona, Spain, July 2013.
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“Collective Vibrational Modes as Signature of a Static Length Accompanying the Glass Transition”,
XIII International Workshop on Complex Systems, March 2012. Andalo (Trento), Italy.
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“Isotropic to Anisotropic Elasticity Transition and Amorphous Order in Network Glasses”,
European Synchrotron Radiation Facility Users' Meeting, February 2012. Grenoble, France.
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“High Frequency Elastic Anomalies and the Boson Peak of Glasses”, XII International Workshop on
Complex Systems, March 2010. Andalo (Trento), Italy.
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“High Frequency Acoustic Attenuation of Vitreous Silica: New Insight From Inelastic X-ray
Scattering”, 6th International Discussion Meeting on Relaxations in Complex Systems (IDMRCS),
September 2009. Roma, Italy.
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“Connection Between Boson Peak and Elastic Properties in Glasses”, XIV National Congress of
Statistical Physics and Complex Systems, June 2009. Parma, Italy.
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“Thermal Conductivity and Terahertz Vibrational Dynamics of Vitreous Silica”, XI International
Workshop on Complex Systems, March 2008. Andalo (Trento), Italy.
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“Thermal Conductivity and Terahertz Vibrational Dynamics of Vitreous Silica”, Workshop
SiMaDes-II, February 2008. Grenoble, France.
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“Sound Attenuation in Structural Glasses”, X International Workshop on Disordered Systems,
March 2006. Molveno (Trento), Italy.
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“Acoustic Attenuation in the Prototypical Strong Glass v-GeO2: an experimental and numerical
simulation study”, 5th International Discussion Meeting on Relaxations in Complex Systems: New
results, Directions and Opportunities (IDMRCS), July 2005. Lille, France.
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“Acoustic Attenuation in the Prototypical Strong Glass v-GeO2: an experimental and numerical
simulation study”, First International Workshop on Neutron Brillouin Scattering, June 2005.
Perugia, Italy.
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“High Frequency Acoustic Attenuation in Vitreous Silica”, IX Congresso Nazionale di Fisica
Statistica e dei Sistemi Complessi, June 2004. Parma, Italy.
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“Acoustic Attenuation in an Unexplored Frequency Region”, INFMeeting, June 2004, Genova,
Italy.
Conference organization:
I have co-organized the national workshop “SOFT” on soft condensed matter, held in Parma in 2011
(http://www.fis.unipr.it/lmn/soft/). The workshop has seen the participation of the Italian research
community working on soft condensed matter and on the physics of disordered materials.
Parma, 30 September 2014
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