Anomalous polarization of the photoluminescence from anisotropic colloidal CdSe nanocrystals subject to external magnetic fields

S. V. Goupalov

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Anomalous polarization of the photoluminescence from anisotropic colloidal CdSe nanocrystals subject to external magnetic fields

机译：各向异性胶体CdSe纳米晶体在外部磁场作用下的光致发光异常极化

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We explain anomalous polarization of magnetophotoluminescence from CdSe nanocrystals with built-in anisotropy observed by Htoon et ai, [Phys. Rev. Lett. 102, 017402 (2009)] in external magnetic fields up to 5 T. While there are two radiative doublets associated with the exciton ground state, it is the lower component of the upper doublet which demonstrates a truly anomalous behavior. We further describe complex behavior of the doublets components polarization in high-magnetic fields. The polarization degree of the upper component of each doublet varies with the applied magnetic field slower than that of the lower component. However, for the upper doublet this behavior is more pronounced and becomes apparent at much lower fields.

机译：我们解释了Htoon等人观察到的具有内置各向异性的CdSe纳米晶体的磁光致发光异常极化。牧师102，017402（2009）]在高达5 T的外部磁场中。尽管激子基态有两个辐射双峰态，但它是上部双峰态的下部分量，表现出真正的异常行为。我们进一步描述了在高磁场中双峰态分量极化的复杂行为。每个双峰的上半部分的极化度随施加的磁场的变化比下半部分的极化度慢。但是，对于上双峰，此行为更为明显，并且在低得多的场上变得明显。

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来源
《Physical review》 |2009年第23期|37-40|共4页
作者
S. V. Goupalov;
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作者单位

Department of Physics, Jackson State University, Jackson, Mississippi 39217, USA A.F. Ioffe Physico-Technical Institute, 26 Polytechnicheskaya, 194021 St. Petersburg, Russia;

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正文语种 eng
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nanocrystals and nanoparticles; quantum dots; electronic structure of nanoscale materials: clusters; nanoparticles; nanotubes; and nanocrystals;

机译：纳米晶体和纳米颗粒;量子点;纳米级材料的电子结构：簇;纳米粒子纳米管和纳米晶体;

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1. Time-and Polarization-Resolved Optical Spectroscopy of Colloidal CdSe Nanocrystal Quantum Dots in High Magnetic Fields [J] . Madalina Furis, Jennifer A.Hollingsworth, Victor I.Klimov, The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2005,第32期

机译：胶态CdSe纳米晶量子点在高磁场中的时间和偏振分辨光谱
2. Exciton spin dynamics and photoluminescence polarization of CdSe/CdS dot-in-rod nanocrystals in high magnetic fields [J] . B. Siebers, L. Biadala, D. R. Yakovlev, Physical review . 2015,第15期

机译：CdSe / CdS点状纳米晶体在高磁场中的激子自旋动力学和光致发光极化
3. Anomalous Circular Polarization Of Photoluminescence Spectra Of Individual Cdse Nanocrystalsin An Applied Magnetic Field [J] . H. Htoon, S. A. Crooker, M. Furis, Physical review letters . 2009,第1期

机译：单个Cdse纳米晶体在施加磁场中的光致发光光谱的圆偏振异常
4. NEGATIVE VISCOSITY INDUCED IN A FERROMAGNETIC COLLOIDAL SYSTEM SUBJECTED TO BOTH EXTERNAL SHEAR FLOW AND AC MAGNETIC FIELDS [C] . HISAO MORIMOTO, TORU MAEKAWA International conference on electrorheological fluids and magnetorheological suspensions and their application . 2002

机译：在经过外部剪切流和交流磁场的铁磁性胶体系统中诱导的负粘度
5. Directed assembly and manipulation of anisotropic colloidal particles by external fields. [D] . Gangwal, Sumit. 2010

机译：通过外部场定向组装和操纵各向异性胶体颗粒。
6. Band structure engineering via piezoelectric fields in strained anisotropic CdSe/CdS nanocrystals [O] . Sotirios Christodoulou, Fernando Rajadell, Alberto Casu, -1

机译：应变各向异性CdSe / CdS纳米晶体中通过压电场的能带结构工程
7. Exciton spin dynamics and photoluminescence polarization of CdSe/CdS dot-in-rod nanocrystals in high magnetic fields [O] . Siebers, B., Biadala, L., Yakovlev, D. R., 2015

机译：Cdse / Cds的激子自旋动力学和光致发光极化高磁场中的点状纳米晶体

Anomalous polarization of the photoluminescence from anisotropic colloidal CdSe nanocrystals subject to external magnetic fields

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