Diamagnetic Shift of a InGaP-AlInGaP Semiconductor Single Quantum Well under Pulsed-magnetic Fields

Diamagnetic Shifts of Quantum Well Excitons in Strong Magnetic Fields Applied in the Well Planes

Cooperative recombination of electron-hole pairs in semiconductor quantum wells under quantizing magnetic fields

Y. D. Jho,1,* X. Wang,2 D. H. Reitze,2,3 J. Kono,4 A. A. Belyanin,5 V. V. Kocharovsky,5,6 Vl. V. Kocharovsky,6 and G. S. Solomon7 1Department of Information and Communications, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea 2Department of Physics, University of Florida, Gainesville, Florida 32611, USA 3National High Magnetic Field Laboratory, Florida State Unive...

Diamagnetic response of exciton complexes in semiconductor quantum dots.

We report measurements of diamagnetic shifts for different exciton complexes confined in small InAs quantum dots. The measured diamagnetic responses are sensitive to the number of carriers in the exciton complexes, with systematic differences between neutral excitons, biexcitons, and trions. Theoretical calculations suggest that such systematic differences arise from very different extents of e...

Quantum chaos with spin-chains in pulsed magnetic fields

Recently it was found that the dynamics in a Heisenberg spin-chain subjected to a sequence of periodic pulses from an external, parabolic, magnetic field can have a close correspondence with the quantum kicked rotor (QKR). The QKR is a key paradigm of quantum chaos; it has as its classical limit the well-known Standard Map. It was found that a single spin excitation could be converted into a pa...

Theory of Quantum Well Excitons in Electric and Magnetic Fields

The effects of external electric and magnetic fields on excitons in GaAsIAlGaAs quantum wells have been calculated in the effective mass approximation. Recent experiments by Viiia et al. which identify exciton couplings induced by an electric field are satisfactorily explained by the effects of valence band mixing. The properties of magneto-excitons in quantum wells are also found to be charact...