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Lateral conductivity in GaAs/InAs quantum dot structures (Articolo in rivista)
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- Lateral conductivity in GaAs/InAs quantum dot structures (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1051/epjap:2004113 (literal)
- Alternative label
L. Dózsa1, A. L. Tóth1, Zs. J Horváth1, P. Hubík2, J. Kri?tofik2, J. J. Mare?2, E. Gombia3, R. Mosca3, S. Franchi3 and P. Frigeri3 (2004)
Lateral conductivity in GaAs/InAs quantum dot structures
in EPJ. Applied physics (Print); EDP Sciences, Les Ulis Cedex (Francia)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- L. Dózsa1, A. L. Tóth1, Zs. J Horváth1, P. Hubík2, J. Kri?tofik2, J. J. Mare?2, E. Gombia3, R. Mosca3, S. Franchi3 and P. Frigeri3 (literal)
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- http://epjap.epj.org/articles/epjap/abs/2004/07/apd49/apd49.html (literal)
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- 1 Research Institute for Technical Physics and Materials Science, Konkoly-Thege 29-33, H-1121 Budapest, Hungary
2 Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 162 53 Praha 6, Czech Republic
3 MASPEC Institute - C.N.R., Parco Area delle Scienze 37a, 43010 Fontanini-Parma, Italy (literal)
- Titolo
- Lateral conductivity in GaAs/InAs quantum dot structures (literal)
- Abstract
- Lateral conductivity effects have been investigated in self-organised InAs quantum dot (QD) structures grown in a GaAs matrix with different cap layers. Current-voltage (I-V), capacitance-voltage (CV), DLTS, capacitance and conductance frequency dependence, fast defect transient (FDT), and electron beam induced conductivity (EBIC) measurements were applied. The conductivity in the QD plane decays within a distance of 10 microns. The capacitance transients are dominated by the local QD-plane transversal conductivity and by the free carrier transport in the cap layer. The nonequilibrium free carrier created by electron beam excitation develop a potential barrier at macroscopic distances from the electrical contacts. (literal)
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