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Room temperature ferromagnetism and anomalous Hall effect in SiMn () alloys
B. A. Aronzon, V. V. Rylkov, S. N. Nikolaev +9
A detailed study of the magnetic and transport properties of SiMn () films is presented. We observe the anomalous Hall effect (AHE) in these films up to…
Dynamics-Controlled Truncation Scheme for Nonlinear Dynamics in Semiconductor Microcavities
S. Portolan, O. Di Stefano, S. Savasta +2
We present a systematic theory of Coulomb-induced correlation effects in the nonlinear optical processes within the strong-coupling regime. In this paper we shall set a dynamics co…
Nonequilibrium Langevin Approach to Quantum Optics in Semiconductor Microcavities
S. Portolan, O. Di Stefano, S. Savasta +2
Recently the possibility of generating nonclassical polariton states by means of parametric scattering has been demonstrated. Excitonic polaritons propagate in a complex interactin…
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…
Low field magnetotransport in strained Si/SiGe cavities
G. Scappucci, L. Di Gaspare, F. Evangelisti +6
Low field magnetotransport revealing signatures of ballistic transport effects in strained Si/SiGe cavities is investigated. We fabricated strained Si/SiGe cavities by confining a…
Ferromagnetic resonant tunneling diodes as spin polarimeters and polarizers
Francesco Giazotto, Fabio Taddei, Rosario Fazio +1
A method for measuring the degree of spin polarization of magnetic materials based on spin-dependent resonant tunneling is proposed. The device we consider is a ballistic double-ba…