Dynamics of the nuclear spin polarization by optically oriented electrons in a (In,Ga)As/GaAs quantum dot ensemble

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 3, 2009, Pages

  Cherbunin, Roman V ^a,b   Verbin, Sergey Yu ^a,b   Auer, Thomas ^a   Yakovlev, Dmitri R ^a,c   Reuter, Dirk ^d   Wieck, Andreas D ^d   Gerlovin, Ilya Ya ^b   Ignatiev, Ivan V ^a,b   Vishnevsky, Dmitry V ^b   Bayer, Manfred ^a  

^a TU DORTMUND UNIVERSITY   (Germany)

^b ST PETERSBURG STATE UNIVERSITY   (Russian Federation)

^c IOFFE INSTITUTE   (Russian Federation)

^d RUHR UNIVERSITY BOCHUM   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84863672883     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.035326     Document Type: Article

References (36)

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34. Absorption of the photon results in creation of an electron-hole pair which relaxes in energy and is coupled with the resident electron in a trion. During this process the wave function and the energy of the resident electron is considerably changed. We assume that it is the process, which allows one to overcome the problem of the energy conservation in the process of transfer of angular momentum from electron to nuclear spins.
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36. Experimentally, the HWHM of the polarization dip depends on the excitation conditions, in particular, on the excitation density and the laser excitation mode (pulsed or continuous wave). For determining Bfρ in this work we used the same conditions as for studying the DNP field.