Seminario: Davide Boschetto, "Real-time investigation of electron and phonon dynamics in bidimensional systems"

Il giorno 10 Settembre 2018, ore 15:00, Aula 2G26 (MSA),

il dr. Davide Boschetto (ENSTA ParisTech/Ecole Polytechnique/CNRS, LOA, Chemin de la Hunière, Palaiseau)

terrà un seminario dal titolo:

"Real-time investigation of electron and phonon dynamics in bidimensional systems"

Abstract nella locandina allegata.

Il proponente:
F. Miletto Granozio

 

 

Attachments:
Download this file (Seminario Napoli Davide Boschetto.pdf)Seminario Napoli Davide Boschetto[Seminario Napoli Davide Boschetto]63 kB

Seminario F. Miletto Granozio, "Formation mechanism and voltage/light induced memory effects in 2-dimensional electron gases at oxide interfaces".

Il giorno 12 luglio 2018 alle ore 15:00 in aula 2G26

il dr. Fabio Miletto Granozio,
CNR-SPIN, Sede Secondaria di Napoli,

 terrà un seminario dal titolo:

"Formation mechanism and voltage/light induced memory effects in 2-dimensional electron gases at oxide interfaces"


Proponente: Giovanni Piero Pepe

 

Abstract:

Two-dimensional electron gases (2DEGs) at oxide interfaces, as LaAlO3/SrTiO3 and it’s several variants,
show multiple functional properties of major physical interest, including a high low-temperature mobility,
superconductivity, a large Rashba spin-orbit coupling, an exceptionally large spin-to-charge conversion
efficiency and a yet controversial magnetic ground, that can be stabilized by atomic engineering.
Furthermore, such properties are tunable under external control parameters, such as electric field effect,
as widely investigated in last years, and by light, investigated so far to a lesser extent. A model able to show
a predictive power and to account for the conductivity of different oxide interfaces, having either a crystalline
or an amorphous overlayer, is still missing. In this talk, a number of experiments on amorphous, crystalline and
hybrid conducting interfaces will be described, allowing to clarify similarities and differences in the 2DEG
formation mechanism. We also report on the peculiar low-temperature electric transport behavior of the
2DEG formed at the amorphous-LaGaO3/SrTiO3 oxide interface, under the combined application of field
effect and light. We show that, by suitably applying a gate voltage pulse, a metastable insulating conducting
state can be induced in the sample, and that such state can be erased by light.
This memory effect is analyzed in detail and the analogy with memristive devices is discussed.

 

*In allegato la locandina del seminario*

 

 

 

Attachments:
Download this file (Seminario dr. Miletto.pdf)Seminario dr. Miletto.pdf[Locandina Seminario dr. Miletto]262 kB

A scuola di astroparticelle … studenti protagonisti!

doc1 1   

       Nell'ambito del Progetto Alternanza Scuola Lavoro, il Liceo "E. Fermi" di Aversa è risultato vincitore del concorso "A scuola di astroparticelle". 


 

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Aramo

 


                                  

 

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