Time-resolved terahertz quenching studies of the magnetoexcitonic photoluminescence from GaAs/AlGaAs quantum wells are performed. A microscopic theory is developed to analyze the experiments. Detailed experiment-theory comparisons reveal a remarkable magnetic-field controllability of the Coulomb and terahertz interactions in the excitonic system. © 2014 American Physical Society.

Jayeeta Bhattacharyya

Department Of Physics

S. Zybell

F. Eßer

M. Helm

H. Schneider

L. Schneebeli

C.N. Böttge

B. Breddermann

M. Kira

S.W. Koch

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IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Physical Review B - Condensed Matter and Materials Physics

Magnetic control of Coulomb scattering and terahertz transitions among excitons

Journal	Physical Review B - Condensed Matter and Materials Physics
ISSN	10980121