Spintronics

The remarkable trend in electronics described by the Moore law is today experiencing increasing difficulties due to fundamental limitations in the current miniaturization approach. Alternative strategies need to be developed, e.g. exploiting a bottom-up molecular approach, mesoscopic devices, additional degrees of freedom or quantum physics. In this frame, spin is likely going to play a crucial role to carry classical or quantum information. Spintronics research in Lecce addresses different fields, from nanoscale devices based on magnetic molecules or nanoparticles to magnetic multilayers and more recent activities on RF systems for hybrid spintronics. Furthermore, we also investigate novel materials (such as multiferroics and functional oxides) and perform magnetic and ferroelectric characterizations. More in detail:

NanoElectronics/Spintronics

This research was the starting point for the group, thanks to the EU project SpiDME. To interconnect the individual building blocks at the nanoscale, we employ electron beam lithography (EBL), focused ion beam or a non- conventional method based on the selective wet-etching and oxidation of an AlGaAs/GaAs quantum well structure for the simultaneous fabrication of large arrays of nanodevices. Molecules or nanoparticles are typically positioned by specific immobilization procedures exploiting suitable functional end-groups. Charge and spin transport studies are carried out within superconducting magnets up to 10.5T and down to 10 mK.

Transport studies in large scale nanojunction arrays with Bisferrocene-nanoparticle hybrids [S. Karmakar et al., Nanoscale 2012, 4, 2311-2316, http://dx.doi.org/10.1039/C2NR11195K].
Transport studies in large scale nanojunction arrays with Bisferrocene-nanoparticle hybrids [S. Karmakar et al., Nanoscale 2012, 4, 2311-2316, http://dx.doi.org/10.1039/C2NR11195K].

Nanomagnetism

Nanomagnetism in magnetic materials and nanoparticles is investigated by vibrating sample magnetometry and a.c. susceptibility. Beyond hysteresis, both zero-field cooled and field cooled curves are typically acquired to evaluate the blocking temperature.

(left) Magnetic hysteresis curves and (right) zero-field cooled and field cooled curves for Fe3O4 nanoparticles.
(left) Magnetic hysteresis curves and (right) zero-field cooled and field cooled curves for Fe3O4 nanoparticles.

Magnetic Multilayers

Multilayer structures are the basis for giant or tunneling magnetoresistance devices. Our research focuses on the integration of further layers including nanoparticles, magnetic molecules, multiferroics or superconducting films. On the technological side, the target is to achieve a large magnetoresistance, which is useful for further applications such as in biosensors.

TMR junctions with nanocrystal superlattice films and their TMR and magnetic response [I. C. Lekshmi et al., ACS Nano 2011, 5, 1731-1738, Doi: 10.1021/nn102301y].
TMR junctions with nanocrystal superlattice films and their TMR and magnetic response [I. C. Lekshmi et al., ACS Nano 2011, 5, 1731-1738, Doi: 10.1021/nn102301y].

RF systems for hybrid spintronics

Recently, we started to investigate 3D microwave cavities and SAW devices for their integration in hybrid spintronic architectures where photons and phonons are coupled to the magnetic degree of freedom.

Multiferroics and Functional Oxides

Here we investigate high-k materials for gate stack technology in logic and memory devices and multiferroic materials for implementing novel operational concepts in spintronics exploting magnetoelectric coupling. Structural, morphological and dielectrical characterizations are typically carried out, while ferroelectric and multiferroic properties are investigated by means of PFM, KPFM, Dielectric and Ferroelectric (PUND) measurements.

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Dielectric investigation of high-k YCTO thin films [A. G. Monteduro et al., J.Mat.Chem.C 2016, 4, 1080-1087, http://dx.doi.org/10.1039/C5TC03189C].
Dielectric investigation of high-k YCTO thin films [A. G. Monteduro et al., J.Mat.Chem.C 2016, 4, 1080-1087, http://dx.doi.org/10.1039/C5TC03189C].

Facilities & Labs

Lab di Caratterizzazione @ Lecce

NanoFab Lab  @ Lecce

People

Giuseppe_MaruccioGiuseppe

Maruccio

Associate Professor

AnnaGrazia_MonteduroAnna Grazia

Monteduro

Associate PostDoc

SilviaRizzatoSilvia

Rizzato

Associate PhD Student

angeloLeoAngelo

Leo

Associate PhD Student

Publications

  1. A. G. Monteduro, Z. Ameer, M. Martino, A. P. Caricato, V. Tasco, I. C. Lekshmi, R. Rinaldi, A. Hazarika, D. Choudhury, D. D. Sarma and G. Maruccio, Dielectric investigation of high-k yttrium copper titanate thin films, Journal of Materials Chemistry C 2016, Vol., p., issn.  2050-7526, Doi: 10.1039/C5TC03189C.
  2. A. G. Monteduro, Z. Ameer, S. Rizzato, M. Martino, A. P. Caricato, V. Tasco, I. C. Lekshmi, A. Hazarika, D. Choudhury, D. D. Sarma and G. Maruccio, Investigation of high- k yttrium copper titanate thin films as alternative gate dielectrics, Journal of Physics D: Applied Physics 2016, Vol.   49, p.  405303, issn.  0022-3727, Doi: 10.1088/0022-3727/49/40/405303
  3. A. Colombelli, M. G. Manera, R. Rella, S. Rizzato, E. Primiceri, A. G. Monteduro and G. Maruccio, Colloidal lithography fabrication of tunable plasmonic nanostructures, IET Conference Publications2015, Vol.   2015, p., issn., Doi: 10.1049/cp.2015.0148.Other Selected Publications
  4. of Advanced Materials 2013, Vol.   5, p.  2015-2020, issn.  1947-2935, Doi:  10.1166/sam.2013.1702.

Patents

Maruccio, E. Primiceri, P. Marzo, V. Arima, R. Krahne, T. Pellegrino, A. Della Torre, F. Calabi, R. Cingolani, R. Rinaldi, Electrical transduction method and device for the detection of biorecognition events in biomolecular interaction processes for genome/proteome analysis, Italian patent number TO2007A000341 (15-5-2007), International Publication number WO 2008/139421 (20-11-2008).

Project

  1. MADIA: Magnetic Diagnostic Assay for neurodegenerative diseases, UE-H2020-ICT, Work programme topic addressed: ICT-03-2016 “SSI – Smart System Integration” (2017-2020).
  2. MEMO: Imaging MEtallorganic MOlecules: Scanning tunneling spectroscopy and many-body theory, MIUR-PRIN Project (2014-2016)
  3. MolArNet: Molecular Architectures for QCA-inspired  Boolean Networks, FP7-ICT-CP, Grant No. 318516, (2012-2016) Partners: Alma Mater Studiorum-Università di Bologna, Université de Strasbourg, Technische Universitaet Dresden, Trinity College Dublin – School Of Physics, Stmicroelectronics Srl.
  4. Molecular nanomagnets on metallic and magnetic surfaces for applications in molecular spintronics MIUR-FIRB Project (2011-2014)
  5. Spintronic devices for mass-scale electronic: MAE-India, High-relevance project for scientific and technological co-operation between Italy and India (2008-2010).
  6. SpiDME: Spintronic Devices for Molecular Electronics, UE-FP6-NEST-STREP Grant Agreement No. 029002, (2006-2010)  Partners:  University of Hamburg – Institute for Applied Physics; University of Nijmegen – Institute for Molecules and Materials; Trinity College Dublin – School of Physics.

Latest News

Disordered serendipity: a glassy path to discovery

A workshop in honour of Giorgio Parisi’s 70th birthday

September 19-21, 2018 - Roma

Sapienza University

With the occasion of celebrating Giorgio Parisi 70th birthday, the conference "Disordered serendipity: a glassy path to discovery" brings to Rome many among the world-leading experts in the field of complex systems. In order to properly represent the many fields of research where Giorgio Parisi gave a relevant contribution in his studies of disordered systems, the conference covers a broad spectrum of topics: from  fundamental and rigorous analysis of the statistical mechanics of disorder systems to applications in biology and computer science. These subjects are deeply interconnected since they are characterized by the presence of glassy behavior.

 

https://sites.google.com/site/disorderedserendipity/

Il prof. Giorgio Parisi eletto presidente dell'Accademia dei Lincei

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La più antica accademia del mondo ha un nuovo Presidente

Roma, 22 Giugno 2018

Siamo lieti di annunciare che il prof Giorgio Parisi, fisico della Università La Sapienza di Roma e Associato Cnr Nanotec, è il nuovo Presidente dell'Accademia Nazionale dei Lincei. A lui le nostre più vive congratulazioni e gli auguri di buon lavoro.

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Costituzione del nuovo Ispc-Cnr

IV incontro - nuovo Istituto di Scienze del Patrimonio Culturale - CNR

Lecce, 20 aprile 2018

Aula Rita Levi Montalcini - ore 11:00

CNR NANOTEC c/o Campus Ecotekne

Per comunicazioni inerenti il processo di riorganizzazione potete scrivere a: infonuovoispc@cnr.it

Tutte le informazioni che riguardano gli incontri, compresi gli indirizzi dello streaming, li trovate sul sito http://www.ispc.cnr.it

Informazioni logistiche: goo.gl/ZieUad