196 citations · 1.4k across the 24 of their papers we have counts for
9 papers · 1 filter
Growth and Characterization of Polycrystalline NbO2 Thin Films on Crystalline and Amorphous Substrates
Ali Fakih, Johan Biscaras, Abhay Shukla
NbO2 is a potential material for nanometric memristor devices, both in the amorphous and the crystalline form. We fabricated NbO2 thin films using RF-magnetron sputtering from a st…
Ultrafast electrons dynamics reveal the high potential of InSe for hot carrier optoelectronics
Zhesheng Chen, Christine Giorgetti, Jelena Sjakste +9
We monitor the dynamics of hot carriers in InSe by means of two photons photoelectron spectroscopy (2PPE). The electrons excited by photons of 3.12 eV experience a manifold relaxat…
The crystal structure of Rb2Ti2O5
R. Federicci, B. Baptiste, F. Finocchi +9
Recent results have demonstrated an exceptionally high dielectric constant in the range 200 K-330 K in a crystalline tianium oxide : Rb2Ti2O5. In this article, the possibility of a…
Anharmonic phonons in few layer MoS: Raman spectroscopy of ultra low energy compression and shear modes
Mohamed Boukhicha, Matteo Calandra, Marie-Aude Measson +2
Molybdenum disulfide (MoS) is a promising material for making two-dimensional crystals and flexible electronic and optoelectronic devices at the nanoscale. MoS flakes can s…
Oxygen disorder in ice probed by X-ray Compton scattering
Ch. Bellin, B. Barbiellini, S. Klotz +4
We use electron momentum density in ice as a tool to quantify order-disorder transitions by comparing Compton profiles differences of ice VI, VII, VIII and XII with respect to ice…
Pressure-induced phonon-freezing in the ZnBeSe alloy: a study via the percolation mesoscope
Gopal K. Pradhan, Chandrabhas Narayana, Olivier Pages +8
We use the 1-bond -> 2-phonon percolation doublet of zincblende alloys as a mesoscope for an unusual insight into their phonon behavior under pressure. We focus on (Zn,Be)Se and sh…
Graphene made easy: high quality, large-area samples
Abhay Shukla, Rakesh Kumar, Javed Mazher +1
We show that by using an original method, bulk graphite can be bonded onto borosilicate glass or potentially any insulating substrate with ionic conductivity and then cleaved off t…
Measuring the intrinsic charge transfer gap using K-edge X-ray absorption spectroscopy
C. Gougoussis, M. Calandra, A. Seitsonen +3
Pre-edge features in X-ray absorption spectroscopy contain key information about the lowest excited states and thus on the most interesting physical properties of the system. In tr…
Anharmonic effects in MgB2? A comparative inelastic X-ray scattering and Raman study
Matteo d'Astuto, Matteo Calandra, Stephanie Reich +7
We study anharmonic effects in MgB2 by comparing Inelastic X-ray and Ramanscattering together with ab-initio calculations. Using high statistics and high q resolution measurements…