Sub-Picosecond Spin Relaxation of Bright Excitons and Imbalance Suppression in Asymmetric Cdse/Zns Nanocrystal Quantum Dots Under an Applied Magnetic Field

2012 ◽  
Vol 12 (3) ◽  
pp. 2919-2923
Author(s):  
Kwangseuk Kyhm ◽  
Jihoon Kim ◽  
Ho-Soon Yang ◽  
Koo-Chul Je ◽  
Akihiro Murayama
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Spin Relaxation ◽  
Applied Magnetic Field ◽  
Nanocrystal Quantum Dots

EFFECT OF Mn IONS ON SPIN RELAXATION AND LIFE-TIME OF e-h COMPLEXES IN CdSe/ZnSe/ZnMnSe QUANTUM DOTS

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2984-2988
Author(s):  
A. V. CHERNENKO ◽  
A. S. BRICHKIN ◽  
V. D. KULAKOVSKII ◽  
N. A. SOBOLEV ◽  
S. V. IVANOV
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Exchange Interaction ◽  
Spin Relaxation ◽  
Qualitative Difference ◽  
Life Time ◽  
Znse Layer ◽  
Growth Plane

Photoluminescence measurements on individual CdSe / ZnSe / ZnMnSe quantum dots in a magnetic field up to 11 T both parallel and perpendicular to the sample growth plane at 1.6 K reveal a qualitative difference between samples with different strength of the sp-d exchange interaction controlled by means of varying the thickness of the nonmagnetic ZnSe layer. The observed difference is related with the dependence of the non-radiative Mn assisted recombination and the spin relaxation on magnetic field and the strength of the exchange interaction.

Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei

2006 ◽  
Vol 243 (15) ◽  
pp. 3922-3927 ◽  
Author(s):  
R. Oulton ◽  
S. Yu. Verbin ◽  
T. Auer ◽  
R. V. Cherbunin ◽  
A. Greilich ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Electron Spin ◽  
Applied Magnetic Field

Energy Spectra of the Low-Lying State in N-Layer Quantum Dots

2013 ◽  
Vol 483 ◽  
pp. 170-173
Author(s):  
An Mei Wang
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Angular Momentum ◽  
External Magnetic Field ◽  
Quantum Dot ◽  
Applied Magnetic Field ◽  
Ground State ◽  
Weak Coupling ◽  
State Energy ◽  
Energy Spectra

A method is proposed to exactly diagonalize the Hamiltonian of a N-layer quantum dot containing a single electron in each dot in arbitrary magnetic fields. the energy spectra of the dot are calculated as a function of the applied magnetic field. We find disco-ntinuous ground-state energy transitions induced by an external magnetic field in the case of strong coupling. However, in the case of weak coupling, such a transition does not occur and the angular momentum remains zero.

Sign in / Sign up

Export Citation Format

Share Document