Zobrazeno 1 - 10
of 138
pro vyhledávání: '"V. Roßkopf"'
Publikováno v:
Solid-State Electronics. 40:333-337
We report measurements of electronic excitations in the confinement regime between one and two dimensions. FIR transmission spectroscopy has been successfully used to detect two-dimensional plasmons dispersion, localized plasmons and depolarization s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c19db5c146473d9301b8a9eee0cb3a9
https://doi.org/10.1016/0038-1101(95)00323-1
https://doi.org/10.1016/0038-1101(95)00323-1
Publikováno v:
Infrared Physics & Technology. 36:113-122
The presently available tunable and narrowband FIR detectors use radiative transitions between Landau levels as selective photoconductive process. Significant improvements in the performance of InSb detectors can be achieved by special surface treatm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3cee9581cc48e3e4a6644af739a7e18
https://doi.org/10.1016/1350-4495(94)00100-y
https://doi.org/10.1016/1350-4495(94)00100-y
Publikováno v:
Semiconductor Science and Technology. 9:399-403
Resonant Raman scattering and FIR transmission spectroscopy is used to detect confined plasmons in shallow etched GaAs/AlGaAs single quantum well wires. Different samples with varying period lengths and wire widths are investigated. The lateral poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2d0e6c4c4279c64b067258fc7661a40
https://doi.org/10.1088/0268-1242/9/4/011
https://doi.org/10.1088/0268-1242/9/4/011
Publikováno v:
Microelectronic Engineering. 24:305-315
The characterization of nanostructures is a topic of vital interest, since the dimensions of commercially available semiconductor devices are now in a range, where quantum size effects become evident. In this paper, various methods are presented to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d49696ea1a4105829297e699b9f8a8b
https://doi.org/10.1016/0167-9317(94)90083-3
https://doi.org/10.1016/0167-9317(94)90083-3
Autor:
Alves-Silva, Jorge M.1,2 (AUTHOR) jmasilva@fmed.uc.pt, Zuzarte, Mónica1,2 (AUTHOR) mzuzarte@uc.pt, Salgueiro, Lígia1,3 (AUTHOR) ligia@ff.uc.pt, Cocco, Emma4 (AUTHOR) a.maxia@unica.it, Ghiani, Valentina5 (AUTHOR), Falconieri, Danilo4 (AUTHOR), Maccioni, Delia4 (AUTHOR), Maxia, Andrea4 (AUTHOR)
Publikováno v:
Molecules. Aug2024, Vol. 29 Issue 16, p3960. 19p.
Autor:
C. Wirner, V. Rosskopf, P. Auer, Erich Gornik, W. Boxleitner, Jürgen Smoliner, R. Strenz, G. Weimann
Publikováno v:
Future Trends in Microelectronics ISBN: 9789401072809
We report measurements of electronic excitations in the confinement regime between zero and two dimensions. FIR transmission spectroscopy has been successfully used to detect 2D plasmons dispersion, localized plasmons and depolarization shifted 1D in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f390d6fafa8af920f664fc9ab66d3309
https://doi.org/10.1007/978-94-009-1746-0_14
https://doi.org/10.1007/978-94-009-1746-0_14
Autor:
V. Rosskopf, S.-C. Lee, Wolfgang Heiss, B. N. Murdin, C. J. G. M. Langerak, Ian Galbraith, Stephen M. Goodnick, Erich Gornik, C. R. Pidgeon, P. Kruck, Manfred Helm, Manfred Dür, Gottfried Strasser
Publikováno v:
Superlattices and Microstructures, 19, 17-24
The problem of intersubband relaxation in GaAs/GaAs quantum wells, where the energy separation of the two lowest subbands is smaller than the optical phonon energy, is considered. Time resolved pump-and-probe measurements are performed with a far-inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84bf13d13729dba82c88834de951b9e5
https://doi.org/10.1006/spmi.1996.0003
https://doi.org/10.1006/spmi.1996.0003
Publikováno v:
Physical review. B, Condensed matter. 47(16)
The magnetotransport in dotlike lateral surface superlattices is investigated as a function of Fermi energy and temperature. At low magnetic fields, the magnetoresistance shows a well-defined negative differential behavior, which is followed by one o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7664b27811064adc80875a6229461533
https://pubmed.ncbi.nlm.nih.gov/10005147
https://pubmed.ncbi.nlm.nih.gov/10005147
Publikováno v:
Physical review. B, Condensed matter. 45(19)
The magnetotransport in a two-dimensional electron gas in strongly modulated potentials is investigated. For dotlike and antidotlike lateral surface superlattices, a well-defined negative-differential-magnetoresistance behavior is observed followed b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11e04ab8393b5f6713db9ff5dbe701c3
https://pubmed.ncbi.nlm.nih.gov/10001067
https://pubmed.ncbi.nlm.nih.gov/10001067
Publikováno v:
Physical review. B, Condensed matter. 45(4)
We have investigated the transport properties of lateral-surface superlattices fabricated by laser holography on modulation-doped GaAs-${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As field-effect transistors. Peaks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f5f8b00e42cfc51064cad9297dc2806
https://pubmed.ncbi.nlm.nih.gov/10001697
https://pubmed.ncbi.nlm.nih.gov/10001697