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We study GaAs-Al(x)Ga(1−x)As superlattices where the heights of the barriers are modulated by a Gaussian profile. Such structures present bands of almost unscattered electronic states. The calculated energy levels of the superlattice agree well with the photoluminescence spectra recorded at low temperature.

Gaussian semiconductor superlattice

BELLANI, VITTORIO;PARRAVICINI, GIANBATTISTA
2000-01-01

Abstract

We study GaAs-Al(x)Ga(1−x)As superlattices where the heights of the barriers are modulated by a Gaussian profile. Such structures present bands of almost unscattered electronic states. The calculated energy levels of the superlattice agree well with the photoluminescence spectra recorded at low temperature.
2000
The Physics category includes resources of a broad, general nature that contain materials from all areas of physics, The category also includes resources specifically concerned with the following physics sub-fields: mathematical physics, particle and nuclear physics, physics of fluids and plasmas, quantum physics, and theoretical physics.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
sì
WOS:000087358100111
2-s2.0-0342955791
Sì, ma tipo non specificato
Inglese
Internazionale
STAMPA
7
3-4
832
835
4
Physica E (Low-dimensional systems and nanostructures) contains papers and review articles on the fundamental and applied aspects of physics in low-dimensional systems, including semiconductor heterostructures, mesoscopic systems, quantum wells and superlattices, two-dimensional electron systems, and quantum wires and dots. Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include optical and transport properties, many-body effects, integer and fractional quantum Hall effects, single electron effects and devices, and novel phenomena. Keywords: • quantum wells and superlatttices; • novel growth and fabrication techniques for nanostructures; • heterostructures, metal-semiconductor and insulator semiconductor structures; • mesoscopic systems, quantum wires and quantum dots; • transport and tunneling; • optical- and phonons-related phenomena; • polymer-semiconductors and superconductor-semiconductor systems; • magnetic semiconductors and magnetic-semiconductor structures; • ultra-fast nonlinear optical phenomena; • novel devices and applications; • single electron devices; • graphene..
Photoluminescence; Modulated Superlattice; Energy Bands
http://dx.doi.org/10.1016/S1386-9477(00)00071-0
6
info:eu-repo/semantics/article
262
E., Diez; I., Gómez; F., Domínguez Adame; R., Hey; Bellani, Vittorio; Parravicini, Gianbattista
1 Contributo su Rivista::1.1 Articolo in rivista
none
1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/100601
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