Skip to main content
Log in

A Study on the Hopping Nature of an Excess Tunnel Current in Heavily Doped Silicon pn Junction Diodes at Cryogenic Temperatures

  • Original Paper
  • Published:
Silicon Aims and scope Submit manuscript

Abstract

Purpose of the work is to study a nature of the excess tunnel current in heavily doped silicon pn junction diodes with lengthy compensation region in the pn junction. In such the diodes, formation of the system of electron and hole “lakes” and hopping conduction via them is possible at low temperatures. And indeed, electric measurements have shown that this excess tunnel current is characterized by Mott’s temperature dependency. It is reasonable to investigate additionally an influence of magnetic field. Previous studies of the magnetic field influence were limited by the field of 9.4 T and alone temperature of 4.2 K. Now the measurements have been carried out at several temperatures close by the liquid helium temperature and at the magnetic fields up to 13.6 T. It was found that in magnetic fields beyond 9.4 T, the diode magnetoresistance demonstrates transition to field dependency predicted theoretically for variable range hopping conduction of Mott’s type via impurity centers. Thus the excess tunnel current in the diode has character of hopping conduction via impurity centers, irrespective of whether the system of electron and hole “lakes” is generated in compensation region of the pn junction or not.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Borblik VL, Shwarts YuM, Shwarts MM, Fonkich AM (2010) Concerning the nature of relaxation oscillations in silicon diodes in the cryogenic temperature region. Cryogenics 50:417–420

    Article  CAS  Google Scholar 

  2. Szmyrka-Grzebyk A, Lipinski L (1993) Low temperature current-voltage characteristics of silicon diodes used as thermometers. Cryogenics 33:222–225

    Article  CAS  Google Scholar 

  3. (2004) Temperature measurement and control, Product Catalog. Published by Lake Shore Cryotronics, Inc.

  4. Shwarts YuM, Borblik VL, Kulish NR, Sokolov VN, Shwarts MM, Venger EF (1999) Silicon diode temperature sensor without a kink of the response curve in cryogenic temperature region. Sens Actuators 76:107–111

    Article  CAS  Google Scholar 

  5. Borblik VL, Shwarts YuM, Shwarts MM (2005) Revealing the hopping mechanism of conduction in heavily doped silicon diodes. Semicond Phys Quantum Electron Optoelectron 8:41–44

    CAS  Google Scholar 

  6. Borblik VL, Shwarts YuM, Shwarts MM (2007) Manifestation of disorder effects in excess tunnel current of heavily doped silicon diodes. Bull Russ Acad Sci: Phys 71:1073–1075

    Article  Google Scholar 

  7. Sze SM (1981) Physics of semiconductor devices, 2nd edn. Wiley, New York

    Google Scholar 

  8. Del Alamo JA, Swanson RM (1986) Forward-bias tunneling: a limitation to bipolar device scaling. IEEE Electron Device Lett 7:629–631

    Article  Google Scholar 

  9. Shklovskii BI (1973) Hopping conduction of heavily doped semiconductors. Sov Phys-Semicond 7:77–83

    Google Scholar 

  10. Borblik VL, Rudnev IA, Shwarts YuM, Shwarts MM (2010) Negative magnetoresistance of heavily doped silicon pn junction. Semicond Phys Quantum Electron Optoelectron 14:88–90

    Article  Google Scholar 

  11. Nguen VL, Spivak BZ, Shklovskii BI (1985) Aaronov-Bohm oscillations with normal and superconducting flux quanta in hopping conductivity. JETP Lett 41:42–45

    Google Scholar 

  12. Nguen VL, Spivak BZ, Shklovskii BI (1985) Tunnel hopping in disordered systems. Sov Phys-JETP 62:1021–1029

    Google Scholar 

  13. Sivan U, Entin-Wohlman O, Imry Y (1988) Orbital magnetoconductance in the variable-range-hopping regime. Phys Rev Lett 60:1566–1569

    Article  CAS  PubMed  Google Scholar 

  14. Entin-Wohlman O, Imry Y, Sivan U (1989) Orbital magnetoconductance in the variable-range-hopping regime. Phys Rev B 40:8342–8348

    Article  CAS  Google Scholar 

  15. Shkovskii BI, Efros AL (1984) Electronic properties of doped semiconductors. Springer, Berlin

    Book  Google Scholar 

  16. Dai P, Zhang Y, Sarachik PM (1991) Critical conductivity exponent for Si:B. Phys Rev Lett 66:1914–1917

    Article  CAS  PubMed  Google Scholar 

  17. Mott N, Davis E (1979) Electronic processes in non-crystalline materials. Oxford University, Oxford

    Google Scholar 

  18. Ionov AN, Rentzsch R, Shlimak I (1996) Role of electron “lakes” in the negative magnetoresistance effect in the region of Mott hopping conductivity. JETP Lett 63:199–203

    Article  Google Scholar 

  19. Dai P, Friedman JR, Sarachik MP (1993) Hopping conduction in doped silicon: the apparent absence of quantum interference. Phys Rev B 48:4875–4878

    Article  CAS  Google Scholar 

  20. Rivas C, Lake R, Frensley WR, Klimeck G, Thompson PE, Hobart KD, Rommel SL, Berger PR (2003) Full band modeling of the excess current in a delta-doped silicon tunnel diode. J Appl Phys 94:5005–5013

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to V. L. Borblik.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Borblik, V.L., Shwarts, Y.M., Shwarts, M.M. et al. A Study on the Hopping Nature of an Excess Tunnel Current in Heavily Doped Silicon pn Junction Diodes at Cryogenic Temperatures. Silicon 11, 1011–1015 (2019). https://doi.org/10.1007/s12633-018-9923-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12633-018-9923-z

Keywords

Navigation