29 citations · 111 across the 7 of their papers we have counts for
7 papers
Driving with temperature the synthesis of graphene films on Ge(110)
L. Persichetti, M. De Seta, A. M. Scaparro +8
We systematically investigate the chemical vapor deposition growth of graphene on Ge(110) as a function of the deposition temperature close to the Ge melting point. By merging spec…
Photoluminescence study of interband transitions in few-layer, pseudomorphic, and strain-unbalanced Ge/GeSi multiple quantum wells
M. Montanari, M. Virgilio, C. L. Manganelli +11
In this paper we investigate the structural and optical properties of few strain-unbalanced multiple Ge/GeSi quantum wells pseudomorphically grown on GeSi reverse-graded substrates…
Formation of extended thermal etch pits on annealed Ge wafers
L. Persichetti, M. Fanfoni, M. De Seta +4
An extended formation of faceted pit-like defects on Ge(001) and Ge(111) wafers was obtained by thermal cycles to T> 750 °C. This temperature range is relevant in many surface-prep…
Early stage of CVD graphene synthesis on Ge(001) substrate
L. Di Gaspare, A. M. Scaparro, M. Fanfoni +6
In this work we shed light on the early stage of the chemical vapor deposition of graphene on Ge(001) surfaces. By a combined use of microRaman and x-ray photoelectron spectroscopi…
Conductance Quantization in Schottky-gated Si/SiGe Quantum Point Contacts
G. Scappucci, L. Di Gaspare, E. Giovine +3
We report on the fabrication and electronic transport characterisation of Schottky-gated strongly confined Si/SiGe quantum point contacts (QPC). At zero magnetic field and T=450mK…
Conductance quantization in etched Si/SiGe quantum point contacts
G. Scappucci, L. Di Gaspare, E. Giovine +3
We fabricated strongly confined Schottky-gated quantum point contacts by etching Si/SiGe heterostructures and observed intriguing conductance quantization in units of approximately…