arXiv subjects

Alexei Ivanov

Publications and source records attributed to Alexei Ivanov.

2 recordsLinked to original sources

arXiv2017

Side resonances and metastable excited state of NV- center in diamond

We discuss the side resonances of optically detected magnetic resonance in diamond crystal and propose the new approach to the calculation of hyperfine interaction in composed system, consisted of negatively charged nitrogen-vacancy NV- center and nearby 13C nuclear spin. Energy levels and spin states are obtained by new method. The base of this method is the using of complete set of commuting operators. In zero magnetic field, predicted the existence of metastable excited state.

cond-mat.mes-hall↗

arXiv2008

Localization and interaction of indirect excitons in GaAs coupled quantum wells

We introduced an elevated trap technique and exploited it for lowering the effective temperature of indirect excitons. We observed narrow photoluminescence lines which correspond to the emission of individual states of indirect excitons in a disorder potential. We studied the effect of exciton-exciton interaction on the localized and delocalized exciton states and found that the homogeneous line broadening increases with density and dominates the linewidth at high densities.

cond-mat.mtrl-sci↗