Curriculum Vitae

 

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I work on theoretical problems connected to the physics of strongly correlated electron systems, in particular cuprates and pnictides High-Tc superconductors. Nowadays I am a Post Doc at SISSA – International School of Advanced Studies.


My CV in detail:
Born in Rome in November 20, 1984

Scientific Career

June 2015-onwards : Postdoctoral Researcher at the Condensed matter group of the SISSA/ISAS (International School of Advanced Studies), Trieste.

November 2012-May 2015 : Postdoctoral Researcher at the Department of Theory and Simulation of Materials of the ICMM – CSIC (Instituto de Ciencia de Materiales de Madrid  del Consejo Superior de Investigaciones Cientıficas), Madrid, Spain.

Academic Degrees

2009-2012
Ph.D. program in Physics at the Physics Department (Condensed Matter Theory Group) of the University of Rome “Sapienza”.
“Transport properties in multichannel systems”. Supervised by Dr. Lara Benfatto, Prof. Claudio Castellani. Ph.D. Defense on the 7th of February 2013.

2009
Master in Physics with full marks and honor University of Rome “Sapienza”.
“Paraconductivity in multiband systems”. Supervised by Prof. Marco Grilli, Prof. Sergio Caprara.

2006
First-class honours degree in Physics with full marks and honor University of Rome “Sapienza”.
“Rotational Brownian Motion: from Einstein theory to dielectric relaxation”. Supervised by Prof. Massimo Falcioni, Dr. Marco Valli.

2003
High school degree with full marks at “Liceo Scientifico Statale F. D’Assisi” in Rome.

Grants and Awards

2013
University of Rome “Sapienza” fellowship for scientific improving activity in a foreign country.
“Role of the orbital and magnetic degrees of freedom in iron based superconductors” at ICMM-CSIC Madrid (Spain).

Talks at Conferences and Research Institutions

[14.] Orbital Selectivity and Hund’s Physics Iron-Based Superconductors
SCES’17, International Conference on strongly correlated electron systems,
Prague (Czech Republic), July 21, 2017

[13.] Orbital Selectivity in the nematic phase of Iron-Based Superconductors: strong and weak-correlated perspectives
Superstripes 2017, Quantum physics in Complex Matter, 
Ischia (Italy), June 9, 2017 (invited)

[12.] Orbital Selectivity of Iron-Based Superconductors emerging from strong and weak-correlated approaches
Instituto de Ciencia de Materiales de Madrid, CSIC,
Madrid (Spain), May 30, 2017 (invited)

[11.] Orbital Selectivity and Hund’s Physics in Iron-Based Superconductors
What about U? , Effects of Hubbard Interactions and Hund’s Coupling in Solids,
Trieste (Italy), October 21, 2016

[10.] Orbital Selectivity and Hund’s Physics in Iron-Based Superconductors
NGSCES 2016, The New Generation in Strongly Correlated Electron Systems 2016,
Trieste (Italy), September 30, 2016 (invited)

[9.] The role of Hund’s coupling in the nematicity of Iron Superconductors
SuperFOx – III Conference on Superconductivity and Functional Oxides,
Turin (Italy), September 21, 2016

[8.] Hund’s physics in Iron-Based Superconductors
7thHTC London Summer Program – Condensed Matter Physics,
London (UK), July 8, 2016

[7.] Spin orbital interplay and topology in the nematic phase of iron pnictides
Instituto de Ciencia de Materiales de Madrid, CSIC,
Madrid (Spain), January 15, 2015

[6.] Interplay between spin orbital degrees of freedom and topology in the nematic phase of iron pnictides
Department of Physics & Astronomy, CSU Long Beach
Long Beach (CA, Usa), October 31, 2014 (invited)

[5.] Microscopic nematicity in iron superconductors coupling of the spin/orbital degrees of freedom and topology
SuperFOx, II Conference on Superconductivity and Functional Oxides,
Rome (Italy), September 25, 2014

[4.] Unconventional Hall effect in pnictides
NGSCES 2013, The New Generation in Strongly Correlated Electron Systems 2013,
Sestri Levante (Italy), July 2, 2013

[3.] Current-current Fermi-liquid in underdoped cuprates
Institut f¨ur Theorie der Kondensierten Materie, KIT,
Karlsruhe (Germany), April 11, 2013 (invited)

[2.] Transport properties in multichannel systems
Instituto de Ciencia de Materiales de Madrid, CSIC,
Madrid (Spain), November 29, 2012 (invited)

[1.] Unconventional Hall effect in pnictides from interband interactions
SuperFOx, I Conference on Superconductivity and Functional Oxides,
Como (Italy), June 20, 2012

Participation to National & International Meetings

Schools/workshops with limited number of partecipants

• 7th HTC London Summer Program – Condensed Matter Physics,
CMP  in the City,
London (UK), July 4 – 8, 2016

• ICTP School & Workshop 2015,
Strongly Correlated Electronic Systems – Novel Materials and Novel Theories,
Trieste (Italy), August 10 – 21, 2015

• Kavli Institute for Theoretical Physics program,
Magnetism, Bad Metals and Superconductivity: Iron Pnictides and Beyond,
Santa Barbara (CA, Usa), October 13 – October 31, 2014

• BOULDER School for Condensed Matter and Materials 2014,
Modern Aspects of Superconductivity,
Boulder (CO, Usa), June 30 – July 25, 2014 (poster contribution).

• ICMM Course 2013,
Emergence of Quantum Phases in Novel Materials: Round of Lectures,
Madrid (Spain), October-November, 2013.

• STEP 2013,
Summer School on Superconductivity – Theory, Experiments, and Phenomena,
Carg´ese (France), August 5 – 17, 2013 (poster contribution).

• ICTP School & Workshop 2012,
Innovations in Strongly Correlated Electronic Systems,
Trieste (Italy), August 6 – 17 , 2012 (poster contribution).

• SPP1458 Workshop,
Superconductivity in Iron-based compounds,
Munich (Germany), March 21 – 23, 2012 (poster contribution).

• MULTIORB 2011,
Summer School on Multiband and Multiorbital Effect in Novel Materials,
Cargese (France), August 1 – 13, 2011 (poster contribution).

• ICMP SChool 2010,
ICTS School of the Condensed Matter Programme 2010,
Mysore (India), December 12 – 23, 2010 (poster contribution).

Conferences

•What about U?,
Effects of Hubbard Interactions and Hund’s Coupling in Solids
Trieste (Italy), October 17 – 21, 2016 (oral contribution and poster).

• NGSCES 2016,
The New Generation in Strongly Correlated Electron Systems 2016
Trieste (Italy), September 26 – 30, 2016 (oral contribution).

• SuperFOx,
III Conference on Superconductivity and Functional Oxides,
Turin (Italy), September 19 – 21, 2016 (oral and poster contribution).

•SNS 2016,
Spectroscopies in Novel Superconductors,
Stuttgartt/Ludwigsburg (Germany),  June 19 – 24, 2016 (poster contribution).

• LEES 2016,
International Conference on Low-Energy Electrodynamics in Solids,
Moriyama, Shiga (Japan), May 29 – June 3, 2016 (poster contribution).

• GRC Superconductivity,
Unconventional Superconductivity: Materials and Mechanisms.
Hong Kong (China), May 24 – 29, 2015 (poster contribution).

• SuperFOx,
II Conference on Superconductivity and Functional Oxides,
Rome (Italy), September 24 – 26, 2014 (oral and poster contribution).

• NGSCES 2013
The New Generation in Strongly Correlated Electron Systems 2013
Sestri Levante (Italy), July 1 – 5, 2013 (oral contribution).

• SuperFOx,
I Conference on Superconductivity and Functional Oxides,
Como (Italy), June 19 – 22 , 2012 (oral and poster contribution).

• Stripes 11,
8th International Conference on Stripes and High Tc Superconductivity,
Rome (Italy), July 10 – 16, 2011 (poster contribution).

• SATT 15,
National Conference of Superconductivity,
Alghero (Italy), September 13 – 15, 2010 (poster contribution).

• LEES 2010,
International Conference on Low-Energy Electrodynamics in Solids,
Les Diablerets (Switzerland), July 5 – 10, 2010 (poster contribution).

Fields of Research

I work on theoretical problems connected to the physics of strongly correlated electron systems. The main topics of my work can be summarized as:

• Low-energy effective modeling of correlated multi–orbital systems
• Phase transitions in correlated electrons systems
• Mott-Insulator transition and Hund metal phase
• Magnetism and nematicity in iron superconductors
• Transport properties of unconventional superconductors
• Superconducting fluctuations in unconventional superconductors
• Topological phases in strongly correlated electron systems

Research Achievements

My research achievements are mainly in the field of iron-based High Tc superconductors. The  key feature of these material is the presence at the Fermi energy of several orbitals that contributes to the various Fermi surfaces. Using low-energy effective models I demonstrated the relevance of multi–band effects in the physics of iron-based material. Taking into account the inter–band interactions via full gauge-invariant calculation, without any further assumptions, allows to explain a number of peculiar properties  experimentally observed in iron–based superconductor (unconventional Hall transport, band-shrinking effect, anomalous superconducting fluctuations). In particular, the specific orbital symmetry of these materials can easily accounts for the emergence of the so-called nematic phase (defined experimentally by the observation of anisotropic electronic and spectroscopic properties in the paramagnetic phase of iron superconductors). My research contributes to establish a new theoretical framework for the analysis of correlated multi–orbital systems such as iron-based superconductors.

Research Methodology and Techniques

I have solid experience with both analytic and numerical approaches for the theoretical analysis of strongly correlated electron systems. I have a strong background in analytic methods of quantum many-body physics and quantum-field theory, e.g.

• Hubbard–Stratonovich transformation
• Ginzburg–Landau functional theory
• Fermi liquid theory
• BCS and Eliashberg quantum field theory
• diagrammatic perturbation theory (self–energy and vertex corrections)
• gauge invariant calculations
• linear response theory
Regarding the numerical methods I have experience with self-consistent Hartree-Fock and BCS approach, and slave–particle techniques. In particular I developed an advanced slave-spin simulation package for the analysis of the spectral weight, the charge and spin correlation functions in strongly correlated multi–orbital system described by the Hubbard–Kanamori Hamiltonian.

Referee Activity

Referee for Physical Review Letters, Physical Review B and Europhysics Letters

Outreach

Popular Article

Review article for the scientific magazine Accastampato edited by the students of the Physics Department of the University of Rome “Sapienza”:
L. Fanfarillo, Cento anni, ma non li dimostra, Accastampato 8, (2012)
accastampato.it/en/tag/numero-8
The english version of the article is available on my webpage at:
laurafanfarillo.files.wordpress.com/2013/04/100 sc.pdf

Popular Seminars for high-school classes and general audience

[2.] A short introduction to superconductivity for general audience,
on behalf of the association FrascatiScienza at “Fiera Nazionale di Grottaferrata”
Grottaferrata (Italy) March 31, 2012.

[1.] Popular seminar about superconductors for general audience, in the occasion of the Official Launch of the issue Accastampato 8 dedicated to superconductivity at Library “Assaggi”
Rome (Italy) February 12, 2012.

More Activities

Public discussions and experimental demonstrations about superconductivity for children, highschool classes and general audience at the ICMM-Madrid within the context of the “Semana de la Ciencia” 2012-2014 editions.

References

• Prof. M. Capone,
Condensed Matter Theory At SISSA
Via Bonomea, 265,
34136 Trieste, Italy
massimo.capone@sissa.it

• Dr. E. Bascones,
Department of Theory and Simulation
of Materials of the ICMM-CSIC
Sor Juana In´es de la Cruz, 3,
Cantoblanco, 28049 Madrid, Spain
leni.bascones@icmm.csic.es

• Dr. B. Valenzuela,
Department of Theory and Simulation
of Materials of the ICMM-CSIC
Sor Juana In´es de la Cruz, 3,
Cantoblanco, 28049 Madrid, Spain
belenv@icmm.csic.es

• Dr. L. Benfatto
ISC-CNR and
Department of Physics
University of Rome “La Sapienza”
P.le A. Moro 2, 00185 Rome, Italy
lara.benfatto@roma1.infn.it

• Prof. C. Castellani
Department of Physics
University of Rome “La Sapienza”
P.le A. Moro 2, 00185 Rome, Italy
claudio.castellani@roma1.infn.it

• Prof. M. Grilli
Department of Physics
University of Rome “La Sapienza”
P.le A. Moro 2, 00185 Rome, Italy
marco.grilli@roma1.infn.it

• Prof. S. Caprara,
Department of Physics
University of Rome “La Sapienza”
P.le A. Moro 2, 00185 Rome, Italy
sergio.caprara@roma1.infn.it

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