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Valdis Corradini

CNR Researcher

tel. +39 059 2055307

fax +39 059 2055651

valdis.corradininano.cnr .it

Address

CNR-Institute of Nanoscience S3,
Dept. of Physics, Univ. of Modena and Reggio Emilia
via G. Campi 213/a, 41125 Modena (Italy)

Running projects

MoQuaS FET (2013-2016) European STREP project (Molecular Quantum Spintronics).

Research interests

His research activity is devoted to the magnetic, structural and electronic investigation of low-dimensional metallorganic systems grown on metallic or semiconducting surfaces. He developed new strategies for the direct and indirect grafting of properly functionalized Molecular-Nano-Magnets (MNM) on suitable surfaces, exploiting the controlled deposition from solid, liquid or vapor phase. The aim is to verify how the main properties of the molecule are modified by the reduced dimensionality and by the interaction with the surface.
Fields of his research activity:
• New families of MNMs with huge Magnetocaloric Effect (MCE) like Fe14 and Gd4Ni8. He developed a new procedure to derive the entropy variation from the XMCD signal. It is possible to monitor if the MCE is preserved at the single molecule. This demonstrates, for the first time, that an important contribution to magnetic refrigeration is an intrinsic molecular property.
• The family of Cr8 antiferromagnetic rings and in particular the heterometallic Cr7Ni ring which is supposed to be particularly promising as “q-bit” for the implementation of a quantum information processing.
• Double-decker phthalocyaninato lanthanide (PcTbPc) have a long magnetization relaxation time as an intrinsic molecular property, and can act as a magnet at single-molecular level with a blocking temperature around 20 K. We have investigated the interaction between two lanthanides in a Triple-decker (Pc-Tb-Pc-Dy-PC).
• Investigation of organic self-assembled low dimensional systems on metallic surfaces. This activity is devoted to understand fundamental aspects of organic molecule interactions at surfaces, from the early stages of hybrid organic-inorganic interface formation to the creation of new 1D and 2D “organic surfaces” controlled by functionalization.
His experimental activity is performed both on-campus and at large scale facilities, to get advantage of the very powerful techniques relying on synchrotron radiation. He got experience in the structural and electronic investigation by exploiting Scanning Tunneling Microscopy (STM), Low Energy Electron Diffraction (LEED), Photoemission Spectroscopies (XPS, UPS), High-Resolution Electron Energy Loss (HREELS), X-ray absorption (XAS) and Resonant Photoemission (ResPES) spectroscopies. The magnetic and orientational properties are studied by Circular Magnetic Dichroism (XMCD) and Linear Dichroism (XLD).

Biographical sketch

Valdis Corradini got the Laurea in Physics in December 1995 at the Università degli Studi di Modena and the PhD in Physics in December 2001, at the Université P.M. Curie (Paris VI) Jussieu, Paris.
Working positions:
- From 2008 Researcher (permanent position) at the CNR S3 National Research Center of Modena devoted to "nanoStructures and bioSystems at Surfaces", on the subject “Multi technique investigation of Molecular nanomagnets at surfaces.”
• From 2003 to 2008 Researcher (III level, Tenure Track) at the CNR-INFM S3 of Modena. Subject: “Characterization of low dimensional systems and organic molecules on surfaces”.
- From 2002 to 2003 Research grant at the University of Modena and Reggio Emilia. Subject: “High resolution spectroscopies and structural properties of low dimensional self-assembled systems”
- From 2000 to 2002 Research grant at the INFM. Subject: "Low Dimensional ordered systems"
- From 1997 to 1999 Research fellowship at the PRA-LOTUS of the INFM. Subject: "High resolution spectroscopy study on metal-insulator transitions".
He has co-authored about 58 papers in international journals and he is Referee of international reviews.
He took part to several International Conferences (8 Oral and many poster presentations) and he was a member of the organizing committees.
He spent more than 30 periods of 1–2 weeks to perform measurements at the large scale Synchrotron Radiation Facilities (DIAMOND, SLS,BESSY ESRF, ELETTRA, LURE).

Selected publications

• V. Corradini et al., Adv. Funct. Mater. 24, 4782 (2014) and selected for the Synchrotron SOLEIL NewsLetters 2014 and Highlights 2014
http://www.newsletter-soleil.fr/newsletters/2014_trim2/en/
• V. Corradini et al., Adv. Mater. 25, 2816 (2013)
and selected for the Synchrotron SOLEIL Highlights 2013
http://www.highlights-synchrotron-soleil.fr/Highlights-2013-booklet/#104
• V. Corradini et al., Adv. Funct. Mater. 22, 3706 (2012)
• A. Ghirri, V. Corradini et al., ACS Nano 5, 7090 (2011)
• M. Gonidec, V. Corradini et al., J. Am. Chem. Soc. 133, 6603 (2011). Also selected for the Virtual issue of “Quantum Molecular Magnets” ACS-2012.


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