September 15, 2011 Thursday 15:30
Giovanni Finnochio, University of Messina
Resonant Effect in the presence of spin transfer torque

Abstract: In this talk I will present some of the recent resonant effects observed in spintronic devices in the presence of spin-transfer torque. I will discuss in detail the resonant switching , the isochronous and non-isochronous locking and the stochastic resonance. Analytical and numerical models will be presented in comparison with the experimental data.

Bio:

Education:
1996 – 2001 Degree in Electronic Engineering – Summa cum Laude;
Thesis on Ferromagnetism and Hysteresis model based on Preisach Formalism. The thesis has been developed in part at the Laboratory of Magnetism at University of Perugia , Italy .
2002 – 2005 PhD in “Advanced technologies for optoelectronics, photonics and electromagnetic modeling”. Thesis on “Macromagnetic and micromagnetic modeling of ferromagnets, nanomagnetism and spintronics.” - University of Messina . Note: During my PhD course and the post-doctorate, I spent time at Universidad de Salamanca , Spain (theoretical group of Prof. Luis Torres) and at Cornell University , NY , USA (experimental groups of Profs. Daniel Ralph and Robert Buhrmam).

Employment:
2008 – 2010 Senior Research Associate in Compuıtational Magnetism and Spintronics, and Magnetic Material Modeling.
Department of Material Physics and Electronic Engineering. University of Messina ; Italy .
2006 – 2007 Postdoctoral Research Associate in Spintronics and Micromagnetism. Department of Material Physics and Electronic Engineering. University of Messina ; Italy .

Actual research interests
Design and realization of simulation tool for spintronic devices. Modeling of materials for spintronic applications. Theoretical and applied spintronics. Nanomagnetism.
Spin-transfer torque effects.
Spintronic devices: Magnetoresistive Random Access Memory design, Nano-oscillators, Microwave detectors.
Modeling and characterizations of magnonic crystals.
Non-linear phenomena in physical systems (injection locking, stochastic resonance,…).
Numerical computing and programming. Parallel computations on GPU-based technology (CUDATM).
Modeling of metamaterials for application in electromagnetism and seismic.
Biomedical applications of magnetoresistive devices.
Main scientific collaborations (active) with both experimentalist and theoretical groups and topic of collaboration
University of Perugia , Perugia ( Italy ); Prof. Ermanno Cardelli. – Modeling of Ferromagnets
Universidad de Salamanca, Salamanca ( Spain ); Prof. Luis Torres and Prof. Eduardo Martinez. Micromagnetism. Domain wall dynamics.
Cornell University , Ithaca , NY ( USA ); Prof. Dan Ralph and Prof. Robert Buhrman. - Spintronic devices: Magnetoresistive Random Access Memory design, Nano-oscillators, Microwave detectors. Applied Spintronics
Irvine University, Irvine, CA (USA); Prof. Ilya Krivorotov. - Spintronic devices: Magnetoresistive Random Access Memory design, Nano-oscillators, Microwave detectors.
Bogazici University , Istanbul , ( Turkey ); Prof. Ozhan Ozatay. - Modeling of materials for Spintronic applications.
Royal Institute of Technology, Stockholm , ( Sweden ); Prof. Johan Åkerman. – Applied Spintronics
Polytechnic University of Turin, Turin (Italy); Prof. Carlo Ragusa. - Magnonics
National Institute of Research in Metrology (INRIM), Electromagnetism Division; Turin (Italy), Dr. Paola Tiberto. – Magnonics
City University of Hong Kong, (Hong Kong), Prof. Antonio Ruotolo, Department of Physics and Materials Science. – Thermal spin-torque

Awards
University of Messina. Young Research Prize for the scientific results of the academic year 2007.