405 citations · 806 across the 16 of their papers we have counts for
16 papers
Infrared study of the quasi-two-dimensional electron system at the interface between SrTiO and crystalline or amorphous LaAlO
A. Nucara, M. Corasaniti, A. Kalaboukhov +9
We have used grazing-angle infrared spectroscopy to detect the Berreman effect (BE) in the quasi-two-dimensional electron system (q-2DES) which forms spontaneously at the interface…
Raman phonon spectrum of the Dzyaloshinskii-Moriya helimagnet Ba2CuGe2O7
F. Capitani, S. Koval, R. Fittipaldi +9
The Raman spectrum of Ba2CuGe2O7, a tetragonal insulator which develops Dzyaloshinsky- Moriya helical magnetism below TN = 3.2 K, has been detected at temperatures varying from 300…
Tunability and Losses of Mid-infrared Plasmonics in Heavily Doped Germanium Thin Films
Jacopo Frigerio, Andrea Ballabio, Giovanni Isella +16
Heavily-doped semiconductor films are very promising for application in mid-infrared plasmonic devices because the real part of their dielectric function is negative and broadly tu…
Observation of Dirac plasmons in a topological insulator
P. Di Pietro, M. Ortolani, O. Limaj +9
Plasmons are the quantized collective oscillations of electrons in metals and doped semiconductors. The plasmons of ordinary, massive electrons are since a long time basic ingredie…
Optical Properties of (SrMnO3)n/(LaMnO3)2n superlattices: an insulator-to-metal transition observed in the absence of disorder
A. Perucchi, L. Baldassarre, A. Nucara +6
We measure the optical conductivity of (SrMnO3)n/(LaMnO3)2n superlattices (SL) for n=1,3,5, and 8 and 10 < T < 400 K. Data show a T-dependent insulator to metal transition (IMT) fo…
Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3
P. Maselli, D. Nicoletti, A. Nucara +5
We observe how the charge-ordering (CO) temperature of Nd1/2Sr1/2MnO3 decreases with the external pressure p from 160 K at p = 0 down to 30 K at p ~ 4.5 GPa, by measuring the value…