Abstract
We study the low-temperature magnetophotoluminescence from individual CdSe nanocrystals. Nanocrystals having a small "bright" exciton fine structure splitting (ΔXY1meV) show an anomalous magnetophotoluminescence polarization, wherein the lower-energy peak becomes circularly polarized with increasing field, while the higher-energy peak remains linearly polarized. This unusual behavior arises from strong mixing between the absorbing and emitting bright exciton levels due to strong anisotropic exchange interactions.
| Original language | English |
|---|---|
| Article number | 017402 |
| Journal | Physical Review Letters |
| Volume | 102 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 5 2009 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Anomalous circular polarization of photoluminescence spectra of individual CdSe nanocrystals in an applied magnetic field. / Htoon, H.; Crooker, S. A.; Furis, M.; Jeong, S.; Efros, Al L.; Klimov, Victor I.
In: Physical Review Letters, Vol. 102, No. 1, 017402, 05.01.2009.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Anomalous circular polarization of photoluminescence spectra of individual CdSe nanocrystals in an applied magnetic field
AU - Htoon, H.
AU - Crooker, S. A.
AU - Furis, M.
AU - Jeong, S.
AU - Efros, Al L.
AU - Klimov, Victor I
PY - 2009/1/5
Y1 - 2009/1/5
N2 - We study the low-temperature magnetophotoluminescence from individual CdSe nanocrystals. Nanocrystals having a small "bright" exciton fine structure splitting (ΔXY1meV) show an anomalous magnetophotoluminescence polarization, wherein the lower-energy peak becomes circularly polarized with increasing field, while the higher-energy peak remains linearly polarized. This unusual behavior arises from strong mixing between the absorbing and emitting bright exciton levels due to strong anisotropic exchange interactions.
AB - We study the low-temperature magnetophotoluminescence from individual CdSe nanocrystals. Nanocrystals having a small "bright" exciton fine structure splitting (ΔXY1meV) show an anomalous magnetophotoluminescence polarization, wherein the lower-energy peak becomes circularly polarized with increasing field, while the higher-energy peak remains linearly polarized. This unusual behavior arises from strong mixing between the absorbing and emitting bright exciton levels due to strong anisotropic exchange interactions.
UR - http://www.scopus.com/inward/record.url?scp=59149083353&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevLett.102.017402
DO - 10.1103/PhysRevLett.102.017402
M3 - Article
VL - 102
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 1
M1 - 017402
ER -