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Dephasing in Ge/SiGe quantum wells measured by means of coherent oscillations

K. Kolata, N. S. Köster, A. Chernikov, M. J. Drexler, E. Gatti, S. Cecchi, D. Chrastina, G. Isella, M. Guzzi, and S. Chatterjee
Phys. Rev. B 86, 201303(R) – Published 30 November 2012

Abstract

We present a dephasing time analysis of the excitonic resonances in Ge/SiGe quantum wells for various lattice temperatures by coherent oscillation spectroscopy (COS). The results are compared to the linewidths of the excitonic resonances determined from linear absorption measurements. Additionally, COS is applied to different samples with varying linewidth, identifying one sample with a dominating homogeneously broadened 1s excitonic resonance down to 7 K.

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  • Received 21 August 2012
  • Corrected 11 April 2013

DOI:https://doi.org/10.1103/PhysRevB.86.201303

©2012 American Physical Society

Corrections

11 April 2013

Erratum

Publisher's Note: Dephasing in Ge/SiGe quantum wells measured by means of coherent oscillations [Phys. Rev. B 86, 201303(R) (2012)]

K. Kolata, N. S. Köster, A. Chernikov, M. J. Drexler, E. Gatti, S. Cecchi, D. Chrastina, G. Isella, M. Guzzi, and S. Chatterjee
Phys. Rev. B 87, 159905 (2013)

Authors & Affiliations

K. Kolata1, N. S. Köster1, A. Chernikov1, M. J. Drexler1, E. Gatti2, S. Cecchi3, D. Chrastina3, G. Isella3, M. Guzzi2, and S. Chatterjee1

  • 1Department of Physics and Materials Sciences Center, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany
  • 2L-NESS and Dipartimento di Scienza dei Materiali, Università di Milano Bicocca, via Cozzi 53, I-20126 Milano, Italy
  • 3L-NESS and Dipartimento di Fisica del Politecnico di Milano, Polo di Como, via Anzani 42, I-22100 Como, Italy

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Issue

Vol. 86, Iss. 20 — 15 November 2012

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