2000
DOI: 10.1103/physrevb.62.10345
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Oscillator strength of trion states in ZnSe-based quantum wells

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Cited by 78 publications
(67 citation statements)
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“…This value was determined from the oscillator strength of the X + transition, which for low carrier densities is linearly proportional to the carrier concentration (see details in Refs. 16,41). Laser illumination redistributes the carrier location in the structure by supplying the QW with electrons.…”
Section: B Optical Tuning Of Carrier Density In Qw'smentioning
confidence: 99%
See 1 more Smart Citation
“…This value was determined from the oscillator strength of the X + transition, which for low carrier densities is linearly proportional to the carrier concentration (see details in Refs. 16,41). Laser illumination redistributes the carrier location in the structure by supplying the QW with electrons.…”
Section: B Optical Tuning Of Carrier Density In Qw'smentioning
confidence: 99%
“…However, after the first report of X − observation in Zn 0.9 Cd 0.1 Se/ZnSe QW's in 1994 [7], detailed investigations were started from 1998 only, when the high-quality ZnSe-based structures with binary quantum well layers were fabricated [8,9,10]. At present rather detailed experimental information on trions in ZnSe QW's is available: (i) negatively-and positively charged excitons were documented [5]; (ii) trions were reported for the lighthole excitons [5,8]; (iii) singlet-and triplet trion states were studied in high magnetic fields [11,12]; (iv) spin structure of trions and spin-dependent formation process of trions were investigated [11,13] dynamics in magnetic fields [14] and coherent dynamics of trions [15] were studied; (vi) oscillator strength of trion resonances was examined for different electron densities and in magnetic fields [16]. Theoretical results for this material system are limited to a calculation of the trion binding energy vs well width [17] and its variation in high magnetic fields [12].…”
Section: Introductionmentioning
confidence: 99%
“…However the σ − resonance is slightly broader than the σ + resonance, which is most probably due to exchange scattering with resident holes. 9 The trion resonance is visible as a small peak in the σ − polarization on the low energy side of the exciton. Being very pronounced in σ − polarization it vanishes in σ + polarization, which is in agreement with the scheme for the p-type case in Fig.…”
Section: Reflectivity Spectra In High Magnetic Fieldsmentioning
confidence: 99%
“…The negatively charged species T − are studied in detail in various material systems, such as GaAs/(Al,Ga)As, [3][4][5] CdTe-based, 6,7 and ZnSe-based [8][9][10] structures. Magnetooptical techniques play a key role in these investigations and allow one to obtain comprehensive information about the energy and the spin structure of the T − complex.…”
Section: Introductionmentioning
confidence: 99%
“…the exciton binding energy in bulk ZnSe is 20 meV). Modification of the optical spectra of modulation-doped quantum wells (QW) containing a 2DEG has been the subject of extensive theoretical [2,3,4,5,6,7,8,9,10] and experimental studies [11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27].…”
Section: Introductionmentioning
confidence: 99%