Zobrazeno 1 - 10
of 26
pro vyhledávání: '"M.J. Snelling"'
Publikováno v:
ResearcherID
Splittings of the n=1 heavy hole exciton spin states in zero and small magnetic fields for several type I quantum well systems are investigated with μeV precision using cw photoluminescence techniques. Field-dependent spin relaxation rates are also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dbf7f17b18a809375e4f0a0c4251454
https://doi.org/10.1016/0039-6028(96)00439-6
https://doi.org/10.1016/0039-6028(96)00439-6
Publikováno v:
Physical Review B. 50:14246-14254
The circular polarization of cw photoluminescence as a function of applied magnetic field has been measured at 1.8 K for excitons in a series of GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As and GaAs/AlAs typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acbaa4295ecf01d9498b29ceca8a9246
https://doi.org/10.1103/physrevb.50.14246
https://doi.org/10.1103/physrevb.50.14246
Publikováno v:
Physical Review B. 45:3922-3925
The magnetic g factor for n=1 heavy-hole--electron excitons in type-I GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As quantum wells has been determined at 1.8 K as a function of well width (${\mathit{L}}_{\math
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13ee656242ee277f818becdc386fd72c
https://doi.org/10.1103/physrevb.45.3922
https://doi.org/10.1103/physrevb.45.3922
Autor:
Chris Phillips, Richard T. Harley, A.C. Tropper, R. Eccleston, Annette S. Plaut, G.P. Flinn, M.J. Snelling
Publikováno v:
Physical Review B. 44:11345-11352
The magnitude and sign of the effective magnetic splitting factor g* for conduction electrons in GaAs/AlxGa(1-x)As quantum wells have been determined as a function of well width down to 5 nm. The experimental method is based on combined measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::383128e492da853618599861b5e1e343
https://doi.org/10.1103/physrevb.44.11345
https://doi.org/10.1103/physrevb.44.11345
Publikováno v:
Semiconductor Science and Technology. 5:533-537
Despite the fact that spectra of nuclear resonances provide a powerful microscopic probe of condensed matter, NMR techniques have not hitherto been applied to the study of semiconductor heterostructures. The reason is that only a tiny fraction of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0f862195a36e6e7d21eb993de5a886b
https://doi.org/10.1088/0268-1242/5/6/012
https://doi.org/10.1088/0268-1242/5/6/012
Publikováno v:
Journal of Luminescence. 45:218-220
We demonstrate use of a spatially selective optical pumping technique to investigate NMR in GaAs quantum wells. The method has previously been used to study bulk semiconductors but not lower dimensional systems. For this its sensitivity (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e5e21d2486954ffc870fb6ddf93db58
https://doi.org/10.1016/0022-2313(90)90150-a
https://doi.org/10.1016/0022-2313(90)90150-a
Publikováno v:
Journal of Luminescence. 45:208-210
Interband excitation of GaAs with circularly polarised light produces a spin-polarised population of photoexcited carriers. The equilibrium degree of spin polarisation under cw excitation depends on the balance of spin relaxation and recombination ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9475783e572243009ecd89be4dcb66fc
https://doi.org/10.1016/0022-2313(90)90147-4
https://doi.org/10.1016/0022-2313(90)90147-4
Autor:
R. Bambha, M.J. Snelling, P. Li-Kam-Wa, A. Miller, J.A. Cavailles, D.A.B. Miller, J.E. Cunningham
Publikováno v:
Quantum Optoelectronics.
In recent years, much attention has been focused on carrier emission rates and cross-well motion in semiconductor quantum well structures because the efficiency and response speed of many MQW optoelectronic devices depend on the dynamics of vertical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6a3e4bfb31f720081ce0fe6d4651d29
https://doi.org/10.1364/qo.1993.qfb.3
https://doi.org/10.1364/qo.1993.qfb.3
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