Journal of Low Temperature Physics

, Volume 167, Issue 5–6, pp 1149–1153 | Cite as

Hot Carrier Velocities in Doped and in Ultra-pure Germanium Crystals at Millikelvin Temperatures

  • J. Domange
  • E. Olivieri
  • A. Broniatowski


The velocity laws of electrons and holes in germanium single crystals at millikelvin temperatures are determined as a function of the electric field in the 〈001〉 orientation, based on time-of-flight measurements in cryogenic coplanar grid Ge detectors. Results obtained in two n-type crystals (|N a N d |<1010 cm−3 and doped to 1011 cm−3) are compared with the experimental data from previous investigations, and shown to be consistent with Monte-Carlo simulations of carrier transport.


Dark matter search Germanium cryogenic detectors Time-of-flight measurements Hot carriers transport 



This study has been supported in part by Agence Nationale pour la Recherche under contract ANR-2010-BLAN-0422 02.


  1. 1.
    L. Reggiani et al., Phys. Rev. B 16, 2781 (1977) ADSCrossRefGoogle Scholar
  2. 2.
    C. Jacoboni et al., Phys. Rev. B 24, 1014 (1981) ADSCrossRefGoogle Scholar
  3. 3.
    K.M. Sundqvist, B. Sadoulet, J. Low Temp. Phys. 151, 443 (2008) ADSCrossRefGoogle Scholar
  4. 4.
    B. Cabrera, M. Pyle, R. Moffatt, K. Sundqvist, B. Sadoulet, arXiv:1004.1233 [astro-ph.IM]
  5. 5.
    V. Aubry-Fortuna, P. Dollfus, J. Appl. Phys. 108 (2010) Google Scholar
  6. 6.
    E. Olivieri, J. Domange, L. Dumoulin, S. Marnieros, A. Broniatowski, J. Low Temp. Phys., These Proceedings (2012). doi: 10.1007/s10909-012-0548-0 Google Scholar
  7. 7.
    A. Broniatowski, J. Low Temp. Phys., These Proceedings (2012). doi: 10.1007/s10909-012-0543-5 Google Scholar
  8. 8.
    J. Domange, A. Broniatowski, E. Olivieri, M. Chapellier, L. Dumoulin, AIP Conf. Proc. 1185, 314 (2009) ADSCrossRefGoogle Scholar
  9. 9.
    E. Olivieri, A. Broniatowski, J. Domange, X. Defay, M. Chapellier, L. Dumoulin, AIP Conf. Proc. 1185, 310 (2009) ADSCrossRefGoogle Scholar
  10. 10.
    D. Chattopadhyay, H.J. Queisser, Rev. Mod. Phys. 53, 745 (1981) ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Centre de Spectroscopie Nucléaire et de Spectroscopie de MasseCNRS/IN2P3, and Université Paris Sud XIOrsay CedexFrance
  2. 2.Service de Physique des ParticulesCEA/DSM/IRFUGif-sur-YvetteFrance

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